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Science / Space Race

[January 24, 1968] On Track for the Moon (Apollo 5 and Surveyor 7]

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by Kaye Dee

As we approach the first anniversary of the shocking loss of the crew of Apollo 1, the success of the recent Apollo 5 mission reminds us that the spirit of Grissom, White and Chaffee lives on as NASA continues developing and testing the technology to make a manned lunar landing a reality.

Apollo 1's Legacy
Although the fire that engulfed Apollo 1 and killed its crew destroyed its Command Module, the accident took place on the launchpad during a launch simulation, and fortunately the Saturn IB booster intended to loft that mission into orbit remained undamaged. Because that AS-204 vehicle was the last Saturn IB with full research and development instrumentation, NASA decided that this rocket would be re-assigned to Apollo 5, the much-delayed first test flight of the Lunar Module – the spacecraft essential for successfully landing astronauts on the Moon – while manned Apollo missions continue on hold.

From LEM to LM
The spacecraft we now call the Lunar Module (LM) became part of the Apollo programme in 1962, when NASA decided to adopt the technique of lunar orbit rendezvous (LOR) for its Moon landing missions. First proposed in 1919 by Ukrainian engineer and mathematician Yuri Kondratyuk, the LOR technique uses two spacecraft that travel together to the Moon and then separate in lunar orbit, with a lander carrying astronauts from orbit to the Moon’s surface. The LOR method allows the use of a smaller and lighter lander than the large, all-on-one spacecraft originally proposed for Apollo, and also provides for greater flexibility in landing site selection.

An early diagram comparing the size of a lunar landing vehicle using the Direct Ascent method of reaching the Moon and a LOR lunar excursion vehicle

The version of lunar orbit rendezvous suggested to NASA by engineer John C. Houbolt called for a landing vehicle consisting of two parts: a landing stage, that would accomplish the descent from orbit and remain on the Moon’s surface, and an ascent stage that would carry the astronauts back to the main spacecraft in orbit. This design gave us the Command Service Module as the Moon orbiting spacecraft, and what was originally called the Lunar Excursion Module (LEM, pronounced as a word, not as the individual letters) as the vehicle that would land astronauts on the Moon.

Dr. Houbolt illustrating the main spacecraft needed for his Lunar Orbit Rendezvous proposal for the Apollo programme

In June 1966, NASA changed the name to Lunar Module (LM), eliminating the word “excursion”. My friends at the WRE tell me that this was because there were concerns that using “excursion” might make it sound like the lunar missions were frivolous, and so reduce support for the Apollo programme! Despite the official name change, the astronauts, as well as staff at Grumman, still call it “the lem”, which certainly feels easier to say.

Delays…Delays…
However, the two-stage LEM/LM has proved much harder to develop and manufacture than the contractor Grumman originally anticipated, because of the complexity and level of reliability required of the hardware. Originally, NASA planned for the automated test flight of LM-1, the first Lunar Module, to occur in April 1967, but the delivery of the spacecraft was repeatedly delayed: the two stages of LM-1 did not arrive at Cape Kennedy until late June last year.

The separately-crated stages of LM-1 arriving at Kennedy Space Centre on board a Super Guppy cargo plane. The stages were mated to each other four days later

A team of 400 engineers and technicians then checked out the spacecraft to ensure that it met specifications. The discovery of leaks in the ascent stage propulsion system meant that the ascent and descent stages were demated and remated multiple times for repairs between August and October. LM-1 was finally mounted on its Saturn IB booster on 19 November and a launch date was set for the latter part of January 1968.

LM-1, encased in its SLA, being hoisted up for mounting on its launch vehicle

Lift Off at Last!
Although the launch was delayed for 10 hours when the countdown was held up by technical difficulties, Apollo 5 finally lifted off on 22 January 1968 (23 January for us here in Australia). The mission was designed to test the LM's descent and ascent propulsion systems, guidance and navigation systems, and the overall structural integrity of the craft. It also flight tested the Saturn V Instrument Unit.

Because they would not be needed during the Apollo 5 test flight, LM-1 had no landing legs, which helped to save weight. NASA also decided to replace the windows of LM-1 with aluminium plates as a precaution, after one of the windows broke during testing last December. Since the mission was of short duration, only some of LM-1’s systems were fully activated, and it only carried a partial load of consumables. 

LM-1's "legless" configuration is clearly seen in this view of it during checkout at Kennedy Space Centre

The Apollo 5 flight did not include Command and Service Modules (CSM), or a launch escape tower, so pictures of the launch vehicle show it to look more like its predecessor AS-203 than AS-202, which tested the CSM. The Apollo 5 stack had an overall height of 180ft and weighed 1,299,434 lbs. The LM was contained within the Spacecraft Lunar Module Adapter (SLA), located just below the nose cap of the rocket. The SLA consists of four panels that open like petals once the nose cap is jettisoned in orbit, allowing the LM to separate from the launcher.

The Saturn IB worked perfectly, inserting the second stage and LM into an 88-by-120-nautical-mile orbit. After the nose cone was jettisoned, LM-1 coasted for 43 minutes 52 seconds, before separating from the SLA into a 90-by-120-nautical-mile orbit. NASA’s Carnarvon tracking station in Western Australia tracked the first six orbits of the mission, while the new Apollo tracking station at Honeysuckle Creek, near Canberra, followed LM-1’s first orbit.

Putting LM-1 Through its Paces
Since it had no astronaut crew, the LM-1 test flight had a mission programmer installed, which could control the craft remotely. The first planned 39-second descent-engine burn commenced after two orbits, only to be aborted by the Apollo Guidance Computer after just four seconds, as the spacecraft was not travelling at its expected velocity. Exactly why this occurred is now being investigated. Of course, if there had been a crew onboard, the astronauts would probably have been able to analyse the situation and decide whether the engine should be restarted.

Instead, Mission Control, under Flight Director Gene Kranz, decided to conduct the engine and "fire-in-the-hole" tests under manual control, as without these test firings the mission would be deemed a failure. The "fire in the hole" test verified that the ascent stage could fire while attached to the descent stage, a procedure that will be used to launch from the Moon’s surface, or in the event of an aborted lunar landing. It involves shutting down the descent stage, switching control and power to the ascent stage, and firing the ascent engine while the two stages are still mated.

Apollo 5 Flight Director Gene Kranz (right) with future Lunar Module crew Astronauts McDivitt (left) and Schweickart (centre) discussing LM-1's control issues

Both the ascent and descent engines were fired multiple times during the flight to demonstrate that they could be restarted after initial use. Eight hours into the mission, a problem with the guidance system did cause the ascent stage to spin out of control, but the vital engine test burns had been completed by then. LM-1 also demonstrated its ability to maintain a stable hover, and the guidance and navigation systems controlled the spacecraft's attitude and velocity as planned.

At the conclusion of the flight testing, the separated ascent and descent stages were left in a low orbit, with the anticipation that atmospheric drag would naturally cause their orbits to decay so that the craft would re-enter the atmosphere. The ascent stage re-entered and was destroyed on 24 January, but as I write the descent stage is still in orbit.

Another Step on the Road to the Moon
NASA considers that the LM performed well during its test flight, and have deemed Apollo 5 a success. One wonders now if the second unmanned test flight with LM-2, planned for later this year, will need to go ahead. NASA also plans to return astronauts to space with a test flight of the redesigned Command Module in September this year. Once that goal is accomplished, every part of the Apollo system will have been tested in spaceflight and it will finally be “Go!” for astronauts to shoot for the Moon. I can’t wait!

Lunar map showing the landing sites of all the successful Surveyor missions

So Long Surveyor!
As the Apollo programme powers forward, the last of NASA’s automated lunar exploration programmes is coming to an end, with Surveyor 7 now in operation on the Moon. The Surveyor project was developed with the goal of demonstrating the feasibility of soft landings on the Moon's surface, ensuring that it would be safe for Apollo crews to touch down in their Lunar Modules. The Surveyor landings have complemented the Lunar Orbiter programme (which drew to a close in the latter part of last year), which imaged the Moon from orbit, mapping the lunar surface and providing detailed photographs of many proposed Apollo landing sites.

Making It Safe for a LM Landing
Of the seven Surveyor missions, five achieved their objectives, returning valuable data and images from the lunar surface. Surveyor 1, launched on 30 May (US time) in 1966, was the first American spacecraft to soft land on the Moon (following the successful landing of the USSR’s Luna 9 on 31 January that year), returning 11,237 images of the lunar surface. Unfortunately, its successor, Surveyor 2, failed in September 1966, impacting onto the lunar surface when a malfunction of the guidance system caused an error in the mid-course correction as it travelled to the Moon.

Surveyor 1's panorama of the lunar surface, which captured its shadow, cast by the light of the Earth

Surveyor 3, which lifted off on 17 April 1967, was the first to conduct in-situ experiments on the lunar soil, using its extendable arm and scoop. The spacecraft also returned over 6,000 images, including the famous "Surveyors Footprint" shot, showing its footpad on the lunar surface. The probe had a lucky escape as it tried to land: a problem with its descent radar caused the descent engine to cut off late, resulting in the lander bouncing twice on the lunar surface before settling down to a final safe landing!

Surveyor 3's footprint and footpad on the lunar surface, showing how it bounced on landing. The extendable arm and scoop are visible on the left of the picture

Just three months later, in July, Surveyor 4 was not so lucky. After a textbook flight to the Moon, contact was lost with the spacecraft just 2.5 minutes before touchdown in the Sinus Medii (Central Bay) region and it crashed onto the lunar surface. It’s believed that the solid-fuel descent engine may have exploded.

Launched on 8 September, Surveyor 5 also encountered engine problems on descent to the lunar surface, with a leak in the spacecraft's thruster system. Fortunately, it survived to make a safe landing and returned over 20,000 photographs over three lunar days. Instead of a sampler arm, Surveyor 5 carried an alpha backscattering experiment, and had a bar magnet attached to one landing pad. It carried out the first off-Earth soil analysis and made one of the most significant finds of the Surveyor missions — that the Moon's surface is likely basaltic, and therefore suitably safe for human exploration.

Surveyor 5's alpha backscattering experiment, sometimes described as a chemical laboratory on the Moon

Surveyor 6 landed safely near the Surveyor 4 crash site in November 1967 carrying an instrument package virtually identical to Surveyor 5. The spacecraft transmitted a total of 30,027 detailed images of the lunar surface, as well as determining the abundance of the chemical elements in the lunar soil. As an additional experiment, Surveyor 6 carried out the first lift-off from the Moon. Its engines were restarted, lifting the probe 12 ft above the lunar surface, and moving it 8 ft to the west, after which it landed again safely, and continued its scientific programme. 

Surveyor 7 – a Last Hurrah!
The successful completion of the Surveyor 6 mission accomplished all the goals that NASA had set for the Surveyor programme as an Apollo precursor. The JPL Surveyor team therefore decided that for the final mission they would aim for a riskier landing site, in the rugged highlands near the Tycho Crater. The engineers gave Surveyor 7 a less than 50-50 chance of landing upright due to the rough terrain in the area!

Tycho crater was the challenging landing site for NASA's last Surveyor mission

Launched on 7 January, Surveyor 7 is the last American robot spacecraft scheduled to land on the Moon before the Apollo astronauts. Its instrument package combines all the experiments used by its predecessors, in order to determine if the rugged terrain would be suitable for a future Apollo landing site.

During its first lunar day, the spacecraft’s camera has returned more than 14,000 images, including some views of the Earth! One of Surveyor 7’s innovations is the use of mirrors to obtain stereoscopic lunar photos. Laser beams directed at the Moon from two sites in the United States have also been recorded by cameras aboard Surveyor 7.

A view of the Earth captured by Surveyor 7's camera

Getting a Scoop
Surveyor 7’s versatile soil mechanics surface sampler is a key instrument on this mission. Designed to pick up lunar surface material, it can move samples around while being photographed, so that the properties of the lunar soil can be determined. It can also dig trenches up to 18 inches into the lunar surface to determine its bearing strength and squeeze lunar rocks or clods. The sampler is a scoop with a container which can be opened or closed by an electric motor. The scoop has a sharpened blade and includes two embedded magnets, to search for ferrous minerals and determine the magnetic characteristics of the lunar soil. So far, the moveable arm and scoop have performed 16 bearing tests, seven trenching tests, and two impact tests.

Only a few Surveyor 7 pictures are currently available, but this view of Surveyor 3 digging a trench into the Moon's surface shows how the scoop carries out this task

The scoop is mounted below the spacecraft’s the television camera so that it can reach the alpha-scattering instrument in its deployed position and move it to another selected location. In fact, the scoop helped to free the alpha-scattering instrument when it failed to deploy on the lunar surface. It has also been used to shade the alpha-scattering instrument and move it to different positions to evaluation other surface samples. During 36 hours of operation between January 11 and January 23, 1968, the sampler has performed flawlessly. Soil analyses have been conducted, as well as experiments on surface reflectivity and surface electrical properties. 

Surveyor 7 is now “sleeping” through its first lunar night. If it survives this period of intense cold, hopefully it will continue to produce significant results during its next lunar day. But if it doesn’t, the scientists and engineers at NASA’s Jet Propulsion Laboratory are already describing the Surveyor programme as a “treasure house of information for landing a man on the Moon before the end of this decade”. This has to be a fitting epitaph for any space mission.








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Science / Space Race

[November 12, 1967] Still in the Race! (Apollo-4, Surveyor-6, OSO-4 and Cosmos-186-188)

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by Kaye Dee

As I noted in my previous article, October was such a busy month for space activity that I had to hold over several items for this month. But November has already provided us with plenty of space news as well. Even though both American and Soviet manned spaceflight is currently on hold while the investigations into their respective accidents continue, preparations for putting astronauts and cosmonauts on the Moon are ongoing and the Moon race is still on!

“Oh, it’s terrific, the building’s shaking!”

Opening the door to human lunar exploration needs an immensely powerful booster, and the successful launch of Apollo-4 a few days ago on 9 November has demonstrated that NASA has a rocket that is up to the task. Although the Saturn 1B rocket intended to loft Apollo Earth-orbiting missions has already been tested, Apollo-4 (also designated SA-501) marked the first flight of a complete Saturn V lunar launcher.

The sheer power of the massive rocket took everyone by surprise. When Apollo-4 took off from Pad 39A at the John F. Kennedy Space Centre, the sound pressure waves it generated rattled the new Launch Control Centre, three miles from the launch pad, causing dust to fall from the ceiling onto the launch controllers’ consoles. At the nearby Press Centre, ceiling tiles fell from the roof. Reporting live from the site, Walter Cronkite described the experience: “… our building’s shaking here. Our building’s shaking! Oh, it’s terrific, the building’s shaking! This big blast window is shaking! We’re holding it with our hands! Look at that rocket go into the clouds at 3000 feet! … You can see it… you can see it… oh the roar is terrific!”

Firing Room 1 in the Launch Control Centre at Kennedy Space Centre, under construction in early 1966. The Apollo-4 launch was controlled from here

Could it be that the sound of a Saturn V launch is one of the loudest noises, natural or artificial, ever heard by human beings? (Apart, perhaps, from the explosion of an atomic bomb?) I hope I’ll get the opportunity to hear, and see, a Saturn V launch for myself at some point in the future.

The Power for the Glory

Developed by Dr. Wernher von Braun’s team at NASA’s George C. Marshall Space Flight Centre, everything about the Saturn V is impressive. The 363-foot vehicle weighs 3,000-tons and the thrust of its first-stage motors alone is 71 million pounds! No wonder it rattled buildings miles away at liftoff!

The F-1 rocket motor, five of which power the Saturn V’s S1-C first stage, is the most powerful single combustion chamber liquid-propellant rocket engine so far developed (at least as far as we know, since whatever vehicle the USSR is developing for its lunar program could have even more powerful motors).

The launcher consists of three stages. The Boeing-built S1-C first stage, when fully fuelled with RP-1 kerosene and liquid oxygen, has a total mass of 4,881,000 pounds. Its five F-1 engines are arranged so that the four outer engines are gimballed, enabling them to turn so they can steer the rocket, while the fifth is fixed in position in the centre. Constructed by North American Aviation and weighing 1,060,000 pounds, the S-II second stage has five Rocketdyne-built cryogenic J-2 engines, powered by liquid hydrogen and liquid oxygen. They are arranged in a similar manner to the first stage engines, and also used for steering. The Saturn V’s S-IVB third stage has been built by the Douglas Aircraft Company and has a single J-2 engine using the same cryogenic fuel as the second stage. Fully fuelled, it weighs approximately 262,000 pounds. Guidance and telemetry systems for the rocket are contained within an instrument unit located on top of the third stage.

Soaring into the Future

This first Saturn V test flight has been tremendously important to the ultimate success of the Apollo programme, marking several necessary first steps: the first launch from Complex 39 at Cape Kennedy, built especially for Apollo; the first flight of the complete Apollo/Saturn V space vehicle; and the first test of Apollo Command Module’s performance re-entering the Earth's atmosphere at a velocity approximating that expected when returning from a lunar mission. In addition, the flight enabled testing of many modifications made to the Command Module in the wake of the January fire. This included the functioning of the thermal seals used in the new quick-release spacecraft hatch design.

 
Up, Up and Away!

Apollo-4 lifted off on schedule at 7am US Eastern time. Just 12 minutes later it successfully placed a Command and Service Module (CSM), weighing a record 278,885 pounds, into orbit 115 miles above the Earth. This is equivalent to the parking orbit that will be used during lunar missions to check out the spacecraft before it embarks for the Moon.

After two orbits, the third stage engine was re-ignited (itself another space first) to simulate the trans-lunar injection burn that will be used to send Apollo missions on their way to the Moon. This sent the spacecraft into an elliptical orbit with an apogee of 10,700 miles. Shortly afterwards, the CSM separated from the S-IVB stage and, after passing apogee, the Service Module engine was fired for 281 seconds to increase the re-entry speed to 36,639 feet per second, bringing the CSM into conditions simulating a return from the Moon.


An image of the Earth taken from an automatic camera on the Apollo-4 Command Module

After a successful re-entry, the Command Module splashed down approximately 10 miles from its target landing site in the North Pacific Ocean and was recovered by the aircraft carrier USS Bennington. The mission lasted just eight hours 36 minutes and 54 seconds (four minutes six seconds ahead of schedule!), but it successfully demonstrated all the major components of an Apollo mission, apart from the Lunar Module (which is still in development) that will make the actual landing on the Moon’s surface. In a special message of congratulations to the NASA team, President Johnson said the flight “symbolises the power this nation is harnessing for the peaceful exploration of space”.

Goodbye Lunar Orbiters…

While Apollo’s chariot was readied for its first test flight, NASA has continued its unmanned exploration of the Moon, to ensure a safe landing for the astronauts. In August, Gideon gave us an excellent summary of NASA’s Lunar Orbiter programme, the first three missions of which were designed to study potential Apollo landing sites. Lunar Orbiter-3, launched back in February this year, met its fate last month when the spacecraft was intentionally crashed into the lunar surface on 9 October. Despite the failure of its imaging system in March, Lunar Orbiter-3 was tracked from Earth for several months for lunar geodesy research and communication experiments. On 30 August, commands were sent to the spacecraft to circularise its orbit to 99 miles in order to simulate an Apollo trajectory.

Lunar Orbiter-3 image of the Moon's far side, showing the crater Tsiolkovski

Each Lunar Orbiter mission has been de-orbited so that it will not become a navigation hazard to future manned Apollo spacecraft. Consequently, before its manoeuvring thrusters were depleted, Lunar Orbiter 3 was commanded on 9 October to impact on the Moon, hitting the lunar surface at 14 degrees 36 minutes North latitude and 91 degrees 42 minutes West longitude. Co-incidentally, Lunar Orbiter-4, which failed back in July and could not be controlled, decayed naturally from orbit and impacted on the Moon on 6 October. Lunar Orbiter-5, launched in August, remains in orbit.

…Hello Surveyor 6

A month after the demise of the Lunar Orbiters, NASA’s Surveyor-6 probe has made a much softer landing on the lunar surface, achieving a “spot on” touchdown in the rugged Sinus Medii (Central Bay – it’s in the centre of the Moon's visible hemisphere) on 10 November (Australian time; 9 November in the US). This region is a potential site for the first Apollo landing, but since it appeared to be cratered and rocky, mission planners needed to know if its geological structure (different to the ‘plains’ areas where earlier Surveyor missions have landed) could support the weight of a manned Lunar Module.

Only an hour after landing safely, Surveyor-6 was operational and sent back pictures of a lunar cliff about a mile from its landing point, which has been described as “the most rugged feature we have yet seen on the Moon”. The first panoramas from Surveyor indicate that the landing site is not as rough as anticipated, and seems suitable for an Apollo landing.

Deep Space Network stations in Australia are helping to support the Surveyor-6 mission, as well as Surveyor-5, that landed in the Mare Tranquilitatis (Sea of Tranquillity) in September and is still operational. Hopefully both spacecraft will survive the next lunar night, commencing two weeks from now. NASA plans to send one more Surveyor probe to the Moon, in January, so look out for a review of the completed Surveyor programme early next year.

Watching the Sun for Astronaut Safety

With the Sun moving towards its maximum activity late next year or early in 1969, and likely to still be very active when the Apollo landing missions are occurring (assuming that the programme resumes some time within the next 12 months), NASA has wasted no time in launching another spacecraft in its Orbiting Solar Observatory (OSO) series, to help characterise the effects of solar activity in deep space. A NASA spokesman was recently quoted as saying that “A study of solar activity and its effect on Earth, aside from basic scientific interest, is necessary for a greater understanding of the space environment prior to manned flights to the Moon”.

OSO-4 under construction

Launched on 18 October, OSO-4 (also known as OSO-D) is the latest satellite developed under the leadership of Dr. Nancy Grace Roman, NASA’s first female executive, who is Chief of Astronomy and Solar Physics. The satellite is equipped to measure the direction and intensity of Ultraviolet, X-ray and Gamma radiation, not just from the Sun, but across the entire celestial sphere.

The OSO-4 spacecraft, like its predecessors, consists of a solar-cell covered “sail” section and a “wheel” section that spins about an axis perpendicular to the pointing direction of the sail. The sail carries a 75 pound payload of two instruments that are kept pointing on the centre of the Sun. The wheel carries a 100 pound payload of seven instruments and rotates once every two seconds. This rotation enables the instruments to scan the solar disc and atmosphere as well as other parts of the galaxy. The satellite’s extended arms give it greater axial stability.

Hopefully, OSO-4 will have a long lifespan, producing data as solar activity increases across the Sun’s cycle, and enhancing safety for the Apollo and Soviet crews who will venture beyond the protection of the van Allen belts on their way to the Moon.

What are the Soviets Up To?

The USSR has been remarkably quiet about its manned lunar programme. One could almost think that they had given up racing Apollo to the Moon, if not for the rumours and hints that constantly swirl around. Rumours abounded at the time of the tragically lost Soyuz-1 mission that it was intended to be a space spectacular, debuting in the Soyuz a new, much larger spacecraft which would participate in multiple rendezvous and docking manoeuvres, and possibly even crew transfers, with one or more other manned spacecraft.

Such a space feat has yet to occur, but the mysterious recent space missions of Cosmos-186 and 188 suggest that the Soviets have something of the sort in mind for the future, and are still quietly working to develop the techniques that they will need for lunar landing missions and/or a space station programme.

It Takes Two to Rendezvous

On 27 October, Cosmos-186 was launched into a low Earth orbit, with a perigee of 129 miles and an apogee of 146 miles and an orbital period of 88.7 minutes. Cosmos-187 was launched the following day, and there has been speculation that it was intended to be part of a rendezvous and docking demonstration with Cosmos-186 but was placed into an incorrect orbit. However, as is so often the case with Cosmos satellites, the Soviet authorities only described their missions as continuing studies of outer space and testing new systems, so the actual purpose of this mission remains a mystery.


A rare Soviet illustration of what is believed to be the Cosmos-186-188 docking

However, Cosmos-186 was joined by a companion on 30 October, when Cosmos-188 was placed into a very similar orbit with a separation of just 15 miles. This clearly demonstrates the precision with which the USSR can insert satellites into orbit. The two spacecraft then proceeded to perform the first fully automated space docking (unlike the manual dockings performed by Gemini missions from Gemini-8 onwards), just an hour after Cosmos-188 was launched. Soviet sources, and some electronic eavesdropping by the now-famous science class at Kettering Grammar School in England, using surprisingly unsophisticated equipment, indicate that Cosmos-186 was the ‘active’ partner in the docking. It used its onboard radar system to locate, approach and dock with the ‘passive’ Cosmos-188.

While the two spacecraft were mechanically docked, it seems that an electrical connection could not be made between them, and no other manoeuvres appear to have been carried out while Cosmos-186 and 188 were joined together. Perhaps there were technical issues surrounding the docking, but an onboard camera on Cosmos-186 did provide live (if rather low quality) television images of the rendezvous docking and separation, and some footage was publicly broadcast.

After three and a half hours docked together, the two satellites separated on command from the ground and continued to operate separately in orbit. Cosmos-186 made a soft-landing return to Earth on 31 October, lending credence to the speculations that it was testing out improvements to the Soyuz parachute system, while Cosmos-188 reportedly soft-landed on 2 November.

Speculating on Soviet Space Plans

Was Cosmos-186 a Soyuz-type vehicle, possibly testing out modifications made to prevent a recurrence of the re-entry parachute tangling that apparently led to the loss of Soyuz-1 and the death of Cosmonaut Komarov? Building on speculations from the time of the Soyuz-1 launch, there have even been suggestions that Cosmos-186, while unmanned, was a spacecraft large enough to hold a crew of five cosmonauts. There is also speculation that Cosmos-188 may have been the prototype of a new propulsion system for orbital operations. Does this mean, then, that the USSR is planning some kind of manned spaceflight feat in orbit to celebrate the 50th anniversary of the Communist Revolution? Or that it will soon attempt a circumlunar flight, to reach the Moon ahead of the United States?

Whatever their future plans may be, the automated rendezvous and docking of two unmanned spacecraft in Earth orbit shows that the USSR’s space technology is still advancing rapidly. The joint Cosmos 186-188 mission proves that it is possible to launch small components and assemble them in space to make a larger structure, even without the assistance of astronauts. This means that massive rockets like the Saturn V might not be required to construct space stations in orbit, or even undertake lunar missions, if the project is designed around assembling the lunar spacecraft in Earth orbit. Has the Cosmos 186-188 mission therefore been a hint of what the USSR's Moon programme will look like, in contrast to Apollo? Only time will tell…


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Science / Space Race

[October 28, 1967] Unveiling Venus – at Least a Little (Venera-4 and Mariner-5)

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by Kaye Dee

Despite the hiatus in manned spaceflight missions while the Apollo-1 and Soyuz-1 accident investigations continue, October has been a very busy month for space activities – so much so that I’ve had to defer writing about some of this month’s events to an article next month!

Spaceflight Slowdown?

4 October saw the tenth anniversary of the launch of Sputnik-1, the Soviet satellite that surprised the world and ushered in the Space Age and the Space Race. Since that first launch, the pace of space exploration has been breathtaking, far surpassing what even its most ardent proponents in the 1950s anticipated.

In the famous Colliers’ “Man Will Conquer Space Soon” article series, reproduced even here in Australia, Dr Wernher von Braun predicted that the first manned mission to the Moon would not occur until the late 1970s

As part of the USSR’s Sputnik 10th anniversary celebrations, many space-focussed newspaper articles were published.  One of these, written by Voskhod-1 cosmonaut and engineer Dr. Konstantin Feoktistov, strongly hinted that Russia's next major space feat would be the launch of an orbiting space platform. This would certainly be an important development in establishing a permanent human presence in space and put the Soviet Union once again ahead in the Space Race, especially if the US and USSR lunar programmes are faltering.

Earlier this month, the head of the NASA, Mr James Webb, said it was increasingly doubtful that either the United States or the Soviet Union would land people on the Moon in this decade. He delivered a gloomy prognostication for the second decade of the Space Age, saying the entire US programme was “slowing down”. Mr. Webb criticised recent Congressional cuts of 10 per cent to the space-agency budget projected for the year ending next 30 June, saying that NASA was laying off over 100,000 people.

Administrator Webb also cast doubt on some proposed NASA planetary exploration missions. “The serious question is whether or not this country wants to start a Voyager mission to Mars in 1968”, he is reported to have said. The Voyager programme is a 10-year project that envisages sending two spacecraft to Mars (one to orbit around it, the other to land on its surface), with the additional possibility of landing a spacecraft on Venus and exploring Jupiter. These would undoubtedly be exciting missions that would reveal new knowledge about these planets, but Mr Webb said he had virtually no money for the Voyager programme as a result of the budget cut.

Parallel Planetary Probes: Venera-4 and Mariner-5

But possible future downturns in space activity can’t detract from this month’s big news: the safe arrival of two spacecraft at Venus!

Back in June, a suitable launch window meant that both the USSR and NASA sent spacecraft on their way to our closest planetary neighbour. First off the blocks was the Soviet Union, which launched its Venera-4 mission (generally known in the West as Venus-4) on 12 June from the Baikonur Cosmodrome in Kazakhstan. NASA’s Mariner-5 followed two days later, on 14 June, launched from Cape Kennedy.

Pre-launch photo of Venera-4

Venera-4 is the most recent Soviet attempt to reach the planet after Venera-2 and 3 failed to send back any data in March last year. There is some speculation that, since its previous Venus mission employed twin spacecraft, Russia may have also intended this Venus shot to be a two-spacecraft mission. It’s possible that the short-lived Cosmos 167 spacecraft, launched on 17 June, was Venera-4’s twin that failed to leave orbit, although with the secrecy that surrounds so much of the Soviet space program, who knows if we’ll ever get the truth of it? Venera-4 was itself first put into a parking orbit around the Earth before being launched in the direction of Venus. A course correction was performed on 29 July, to ensure that the probe would not miss its target.


Mariner-5 being prepared for launch

Mariner-5 is NASA’s first Venus probe since Mariner-2 in 1962. Originally constructed as a backup for the Mariner-4 Mars mission, that probe’s success meant that the spacecraft could be repurposed to take advantage of the 1967 Venus launch window. Interestingly, I understand from my friends at the Sydney Observatory that there were initial suggestions to send the Mariner back-up spacecraft to either comet 7P/Pons–Winnecke or comet 10P/Tempel, before the Venus mission was decided upon. While it’s useful to have additional data from Venus, it would have been fascinating to send an exploratory mission to a comet, since we know so little about these transient visitors to our skies. 

At its closest, Venus is just 36 million miles from Earth, but Mariner-5 followed a looping flightpath of 212 million miles, to enable it to fly past Venus at a distance of around 2,500 miles (about 10 times closer than Mariner-2’s flyby). Australia’s Deep Space Network (DSN) stations at Tidbinbilla, near Canberra, and Island Lagoon, near the Woomera Rocket Range, were respectively the prime and back-up monitoring and control stations for Mariner-5’s mid-course correction burn that placed it on its close flyby trajectory. 

Keys to Unlock a Mystery

Venus has always been a planet shrouded in mystery since its thick, cloudy atmosphere prevents any telescopic observation of its surface. For this year’s launch window, one could almost believe that Cold War tensions had been overcome and the USSR and USA had agreed to work together on a Venus exploration program, given that their two spacecraft effectively complement each other.

Venera-4’s mission was announced as “direct atmospheric studies”, with Western scientists speculating that this meant that it would follow Venera-3 in attempting to land on the planet’s surface. The spacecraft’s arrival at Venus has proved this speculation to be correct, and the few images of Venera-4 now available show the 2,436 lb spacecraft to be near-identical to Venera-3. 11 ft high, with its solar panels spanning 13 ft, Venera-4 carried a 1 metre (3 ft 3 in) spherical landing capsule that was released to descend through the atmosphere while the main spacecraft flew past Venus and provided a relay station for its signals.
Soviet models of the Venera-4 spacecraft and its descent capsule

The 844 lb descent capsule was equipped with a heat shield, capable of withstanding temperatures up to 11,000°C (19,800 °F) and had a rechargeable battery providing 100 minutes of power for the instruments and transmitter. During the flight to Venus the battery was kept charged by the solar panels of the carrier spacecraft. Supposedly, the entire Venera-4 probe was sterilised to prevent any biological contamination of Venus, but some Western scientists have cast doubt on this claim. The capsule was pressurized up to 25 atmospheres since the surface pressure on Venus was unknown until Venera-4’s arrival.
Picture of the Venera-4 descent capsule released by the USSR. Western scientists are wondering what that heat shield is made of

Information recently released by the Soviet Academy of Sciences has said that the descent vehicle carried two thermometers, a barometer, a radio altimeter, an atmospheric density gauge, 11 gas analysers, and two radio transmitters. Scientific instruments on the main body of the spacecraft included a magnetometer and charged particle traps, both for measuring Venus' magnetic field and the stellar wind on the way to Venus, an ultraviolet spectrometer to detect hydrogen and oxygen gases in Venus' atmosphere, and cosmic ray detectors.


Much smaller than Venera-4, the 5401b Mariner-5 was designed to flyby Venus taking scientific measurements: it was not equipped with a camera, as NASA considered this un-necessary in view of the planet’s cloud cover. NASA controllers initially planned a distant flyby of Venus, to avoid the possibility of an unsterilised spacecraft crashing into the planet, but the final close flyby was eventually chosen to improve the chances of detecting a magnetic field and any interaction with the solar wind.

As Mariner-4’s backup, Mariner-5 has the same basic body – an octagonal magnesium frame 50 in diagonally across and 18 in high. However, since it was heading to Venus instead of Mars, Mariner-5 had to be modified to cope with the conditions much closer to the Sun. Due to its trajectory, Mariner-5 needed to face away from the Sun to keep its high-gain antenna pointed at Earth. Its solar panels were therefore reversed to face aft, so they could remain pointed at the Sun. They were also reduced in size, since closer proximity to the Sun meant less solar cells were needed to generate the same level of power. Mariner-5's trajectory also required the high-gain antenna to be placed at a different angle and made moveable as part of the radio occultation experiment. A deployable sunshade on the aft of the spacecraft was used for thermal control, and Mariner-5 was fully attitude stabilized, using the sun and Canopus as references.
View from below showing the main components of Mariner-5

Mariner-5’s prime task was to determine the thickness of Venus’ atmosphere, investigate any potential magnetic field and refine the understanding of Venus’ gravity. Its suite of instruments included: an ultraviolet photometer, a two-frequency beacon receiver, a S-Band radio occultation experiment, a helium magnetometer, an interplanetary ion plasma probe and a trapped radiation detector. The spacecraft instruments measured both interplanetary and Venusian magnetic fields, charged particles, and plasmas, as well as the radio refractivity and UV emissions of the Venusian atmosphere.

During its 127-day cruise to Venus, Mariner-5 gathered data on the interplanetary environment. In September and October, observations were co-ordinated with measurements made by Mariner-4, which is on its own extended mission, following its 1965 encounter with Mars. Similar observations were made by Venera-4 during its flight to Venus, which found that the concentration of positive ions in interplanetary space is much lower than expected. 

Missions Accomplished

A few days before it arrived at Venus, the Soviet Academy of Sciences requested assistance from the massive 250 feet radio telescope at the Jodrell Bank Observatory in the UK, asking the facility to track Venera-4 for the final part of its voyage. This has provided Western scientists with some independent verification of Soviet claims about the mission. Jodrell Bank even announced the landing of the Venera-4 descent capsule more than seven hours before it was reported by the Soviet news agency Tass!

On 18 October, Venera-4’s descent vehicle entered the Venusian atmosphere, deploying a parachute to slow its fall onto the night side of the planet. According to a story that one of the Sydney Observatory astronomers picked up from a Soviet colleague at a recent international scientific conference, because there was still the possibility that, beneath its clouds Venus might be largely covered by water (one of the main theories about its surface), the capsule was designed to float if it did land in water. Uniquely, the spacecraft’s designers made the lock of the capsule using sugar, which would dissolve in liquid water and release the transmitter antennae in the event of a water landing.

Although the Venera-4 capsule had 100 minutes of battery power available and sent back valuable data as it fell through the atmosphere, Jodrell Bank observations, and the official announcement from Tass, indicated that the signal cut off around 96 minutes. While it was initially thought that this meant that the capsule had touched down on the surface, and there were even early reports claiming it had detected a rocky terrain, questions are now being raised as to whether it actually reached the surface, or if the spacecraft failed while still descending. Tass has said that the capsule stopped transmitting data because it apparently landed in a way that obstructed its directional antenna. A recording of the last 20 seconds of signal received at Jodrell Bank was delivered to Vostok-5 cosmonaut Valery Bykovsky during a visit to the radio telescope on 26 October. Perhaps once it is fully analysed, the question of the capsule’s fate will be clarified. Of course, if the landing is confirmed, Venera-4 will have made history with the first successful landing and in-situ data gathering on another planet.

Diagram illustrating the major milestones during the Mariner-5 encounter with Venus on 19 October
Mariner-5 swept past Venus on 19 October, making a close approach of 2,480 miles. At 02:49 GMT the Island Lagoon DSN station commanded Mariner 5 to prepare for the encounter sequence and 12 hours later its tape recorder began to store science data. Tracked by the new 200 in antenna at NASA’s Goldstone tracking station, Mariner reached its closest encounter distance at 17:35 GMT, and minutes later entered the “occultation zone” before passed behind Venus as seen from the Earth. 17 minutes later, Mariner-5 emerged from behind Venus and completed its encounter at 18:34 GMT.

The following day, Mariner-5 began to transmit its recorded data back to Earth. Over 72½ hours there were three playbacks of the data to correct for missed bits. Mariner-5's flight path following its Venus encounter is bringing it closer to the Sun than any previous probe and the intention is for to be tracked until its instruments fail.

A Peep Behind the Veil

So what have we learned about Venus from these two successful probes? There has long been controversy among astronomers as to whether Venus is a desert planet, too hot for life, or an ocean world, covered in water. The data from both Venera and Mariner has come down firmly on the side of the desert world hypothesis.
Astronomical artist Mr. Chesley Bonestell's 1947 vision of a desert Venus

The effects of Venus’ atmosphere on radio signals during Mariner-5’s occultation experiment have enabled scientists to calculate temperature and pressure at the planet's surface as 980°F and 75 to 100 Earth atmospheres. These figures disagree with readings from Venera 4 mission, which indicate surface temperatures from 104 to 536°F and 15 Earth atmospheres’ pressure, but both sets of data indicate a hellish world, with little evidence of water and an extremely dense atmosphere.

Venera has established that Venus’ atmosphere consists almost exclusively of carbon dioxide with traces of hydrogen vapour, very little oxygen, and no nitrogen. Mariner-5's data indicates that the atmosphere of Venus ranges from 52 to 87 per cent carbon dioxide, with both hydrogen and oxygen in the upper atmosphere: it found no trace of nitrogen. It detected about as much hydrogen proportionately as there is in the Earth's atmosphere. Mariner scientists, however, have pointed out that further analysis and refinements of both Russian and American data could clear up the apparent discrepancies.

Although Mariner’s instruments could not penetrate deeply enough into Venus’ atmosphere to obtain surface readings, they determined that the outer fringe of the atmosphere, where atoms were excited by direct sunlight, had a temperature of 700°F, below which was a layer close to Zero degrees, lying about 100 miles above the surface. Chemicals in the atmosphere, or electrical storms far more intense than those of Earth, give the night side of the planet an ashen glow.
A view of the Mariner-5 control room at JPL during the Venus encounter

A fascinating finding is that the dense atmosphere acts like a giant lens, bending light waves so they travel around the planet. Both American and Russian researchers agree that astronauts standing on the surface would feel like they were “standing at the bottom of a giant bowl”, with the back of their own heads a shimmering mirage on the horizon. Vision would be so distorted that the sun would appear at sunset to be a long bright line on the horizon: its light could penetrate the atmosphere, but not escape because of scattering, so that it would appear as a bright ball again for a time at sunrise until the atmosphere distorted its rays.

Neither spacecraft found any evidence of radiation belts comparable to the Van Allen belts around the Earth, and both established that Venus has only a very slight magnetic field, less than 1% that of the Earth. Observing how much Venus' gravity changed Mariner 5's trajectory established that Venus’ mass is 81.5 % that of Earth. Tracking of radio signals from Mariner-5 as it swept behind Venus, has shown that the planet is virtually spherical, compared with Earth's slightly pear-shape. (Other celestial mechanics experiments conducted with Mariner-5 obtained improved determinations of the mass of the Moon, of the astronomical unit, and improved ephemerides of Earth and Venus).

Life on Venus?

Although neither spacecraft was equipped to look for life on Venus, their findings will undoubtedly contribute to the growing scientific controversy over whether life does, or can, exist there. Based on its Venera results, the Soviet Union has said that Venus is “too hot for human life”, although Sir Bernard Lovell, the Director of Jodrell Bank Station, has suggested that future probes might find remnants of some early organic development, even if conditions today make life highly unlikely. However, German/American rocket pioneer and space writer Dr Willy Ley, has suggested there might be the possibility of “a very specialised kind of life on Venus”, possibly at the poles, which he believes would be cooler that the currently measured temperatures. The USSR’s Dr Krasilnikov has said that Earth bacteria could withstand the atmospheric pressure on Venus and might even be able to survive the intense heat. 


But just as Mariner-4 demolished fantasies of canals made by intelligent Martians, so the results from Venera-4 and Mariner-5, in allowing us a glimpse behind its cloudy veil, have swept aside any number of science fiction visions of Venus. Edgar Rice Burroughs’ verdant Amtor, with its continents and oceans, and Heinlein’s swampy Venus are no more. They have been replaced by a new vision of a hellish Venus, almost certainly inimical to life, with fiery storms raging in a dense, metal melting atmosphere which traps and bends light waves in a weird manner. I wonder where the SF writers of the future will take it?



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Science / Space Race, Uncategorized

[August 24, 1967] Up and Around (Lunar Orbiter)

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by Gideon Marcus

Wall to Wall Coverage

When President John F. Kennedy, on May 4, 1961, commited the United States to "achieving the goal, before this decade is out, of landing a man on the Moon and returning him safely to the Earth," he initiated not one, but several parallel endeavors.

To land a man on the Moon requires not just a spaceship, a rocket, and the infrastructure to support them, it requires reconnaissance.  When the President made that speech, the closest photographs of the lunar surface had been taken from 250,000 miles away.  The smallest details our 'scopes could make out at the time were about a quarter mile wide.  This is fundamentally useless when trying to determine whether a given site is flat enough to be suitable for landing a spacecraft.  Guessing the height of lunar mountains from their shadows at such resolution was similarly impossible.  Who knew how many hidden peaks lurked to snag Apollo astronauts on their way down?

Project Ranger was NASA's first major lunar project, each spacecraft taking pictures of the Moon before crashing into it. Three successful missions achieved resolutions as sharp as a foot and a half.  Good enough, resolution-wise, but can you imagine having to send a Ranger for any one of dozens of potential landing sites?  The cost would be prohibitive.  Ranger's follow-up, the soft-landing Surveyor was able to determine if the lunar surface could be landed on, but it was no better at mapping the Moon than Ranger.


Potential Apollo site areas

As early as 1960, NASA knew it would need an orbiting spacecraft if it was ever to thoroughly map the Moon.  There was Earthly precedent — the Discoverer spy satellite was at that time already taking high resolution photographs of the Earth for military surveillance purposes.  But getting a spacecraft all the way to the Moon, and it being able to provide footage of 99% of the lunar surface?  That was another kettle of fish.  That required a big rocket to carry a big satellite that could carry a big imaging system.  TV imaging was quickly discarded as being too bulky and low resolution.

In 1962, Space Technology Laboratories put forth an orbiter proposal that used a film system, with each frame to be imaged and transmitted back to Earth.  This was the first workable design, and combined with elements of an RCA proposal, NASA was able to officially solicit contractors for the project in mid-1963.  Ultimately, Boeing won the contract, in large part because of their design's use of Eastman Kodak's new dry film development system.  Their camera would be more reliable, lighter, and less susceptible to solar flares ruining the photos.

Like Scales Falling from the Eyes

It took more than two years of development, but by 1966, the 850 pound Lunar Orbiter was ready.  Using the same Atlas Agena as Ranger, the first spacecraft roared off to the Moon on August 10.  Despite some navigational failures and a bit of overheating, Lunar Orbiter 1 braked into lunar orbit on August 14.  The next day, the spacecraft began sending back pictures–not of the Moon, but of previously developed images, to test the system.

Issues plagued the high-resolution camera system throughout the mission, smearing many of the photos.  But by August 29, Lunar Orbiter 1 was able to take 205 pictures of the Moon at altitudes ranging from 1000 to just 30 miles (no air means an orbit can be as low as you like), readout of which began August 30 and finished September 16.  All of the major Apollo landing sites were photographed, and at high contrast.  The cherry on top of the lunar sundae was this photograph of the Earth, the first taken from the vicinity of the Moon, and the longest distance snapshot of our home planet:

This did not mark the end of the first Lunar Orbiter's mission.  For the next six weeks, NASA continued to receive telemetry and data from the probe's micrometeor detectors (no hits recorded).  But by October 28, Lunar Orbiter was a sick ship, indeed, running low on stabilizing jet fuel, overheating, and losing power.  It was starting to broadcast erratically, which threatened to interfere with communications with the upcoming Lunar Orbiter 2.  So, on October 29, during its 577th orbit, Lunar Orbiter 1 was directed to impact with the Far Side of the Moon.

Two for Two

Just eight days later, on November 6, Lunar Orbiter 2 headed for the Moon.  Much of it had been painted black, which addressed the navigation issues (glare blotting out the guide star Canopus).  Overheating was avoided by frequent maneuvers to minimize exposure of heat-absorbing surfaces to the sun.  By November 18, the spacecraft was snapping perfect medium resolution (for broad range) and high res (for potential landing site) pictures of the Moon from a 30 mile orbit.  Mapping was done by the 26th and readout by December 7.  Among the most significant shots included one of the Ranger 8 impact site and another dramatic photograph of Copernicus crater:


(C1 is Ranger's impact crater)


Copernicus from the side

817 pictures were taken in all, only six of which were lost due a glitch in an amplifier on the final day of readout.  Lunar Orbiter 2 is still in orbit, returning data.  In fact, it was hit three times by micrometeors back in November, probably by the same cometary fragments that give us our annual Leonids meteor display.

Following Up

Lunar Orbiter 3, launched February 7, 1967, had a more refined mission than its predecessors.  Its job was to focus on promising sites its sisters had found rather than mapping willy nilly.  NASA engineers planned to closely study its orbit around the Moon for gravitational wiggles, thus making a map of the Moon's insides as well as its surface.

Unfortunately, while the spacecraft was shooting pictures, the film advance mechanism started to balk.  NASA terminated photography on February 23 after just 211 pictures.  On March 4, with 72 photos still left to be transmitted back to Earth, the film advance motor burned out.  Still, had NASA not stopped shooting pictures earlier, it is likely they would have lost all of the photos.

The shots they did get were unprecedentedly good, including this shot of the Surveyor 1 landing site:

Gilding the lily

At this point, the Lunar Orbiter program had already fulfilled its main requirement: documenting all possible Apollo landing sites.  Now it was time to push the system to its limits.  Lunar Orbiter 4 went up on May 4, 1967, beginning photography on the 11th.  The spacecraft immediately ran into trouble.  The thermal door that regulated camera temperature wasn't closing properly, letting light leak through.  This led to a scramble to test the problem on the ground.  Engineers were able to keep the door partially open, threading the needle between too much glare and dropping the temperature such that condensation fogged the film.  The readout encoder started going, too.  NASA cut off photography atfter 163 shots, but because the encoder was bleating erroneous signals, engineers had to work out a tedious, manual system for film advance and readout.  Still, they got it done by June 1, resulting in 99% coverage of the Moon's near side at ten times the resolution possible from Earth.  This revealed a bonanza of selenological detail.  Plus, 80% of the Moon's Far Side had now been mapped, too.

The last Lunar Orbiter went up on August 1 with a primarily scientific mission.  Shooting began August 6, and on August 8, the spacecraft took an historic shot of the full Earth:

All of the planned 212 shots were taken by August 18 covering five Apollo sites, 36 science sites, and 23 previously unphotographed sites on the lunar Far Side.  An unqualified success, the spacecraft will enter the next phase of its life this week, returning data on the lunar environment and gravitational field along with the still orbiting Lunar Orbiters 2 and 3 (contact with #4 was lost July 17).

Unprecedented

It was just a few years ago that it seemed the Moon was a curse.  Most of the early Pioneer probes failed, with only Pioneer 4 a real success.  Three our of nine Rangers were duds.  Along comes Lunar Orbiter, every mission of which was more or less a triumph.  The way has been paved for the first human beings to set foot on another world in a year or two.

But beyond that, real science has been done.  A few years back, my sister gave me a lovely 1963 map of the Moon, the most detailed possible at the time.  I can't wait for a new map, based on Lunar Orbiter pictures, to come out.

I know what I want for Hannukah this year!




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Science / Space Race, Science Fiction/Fantasy, TV

[August 22, 1967] Boldly Going Down Under (Star Trek, Spies and space in Australia)

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by Kaye Dee

Since Star Trek debuted in the US last year, I’ve been eagerly awaiting its appearance Down Under after reading all the fascinating episode reviews that my fellow writers have produced for the Journey.

As I’ve mentioned before , the arrival of overseas television programmes onto Australian screens can vary wildly, from a few months to several years after premiering in their home country, so I had no idea how long I might have to wait. Thankfully, this time it’s only taken about ten months for the adventures of the crew of the USS Enterprise to reach our shores, with the series premiering in Sydney on TCN-9, the flagship station of the Nine Network, on Thursday 6 July.

Who’s Watching Out for the Watchers?
Like the introduction of Doctor Who in Australia, Star Trek’s presence on our screens has had to pass the scrutiny of the Australian Film Censorship Board (AFCB), which reviews all foreign content for television broadcast in Australia – and like Doctor Who, it has not escaped unscathed. The good Doctor’s Australian premiere was delayed by the AFCB considering its early episodes not suitable for broadcast in a “children’s” timeslot. Other episodes have experienced censorship cuts of scenes considered scary for children, and the entire Dalek Masterplan story was even banned for being too terrifying! (I really must write a future article on the curious censorship of Doctor Who in Australia).

Similarly, The Man Trap , screened as the first episode in the US, has also been banned here, deemed unsuitable for the show’s 8.30pm timeslot due to its themes of vampirism! Apparently, the ACFB thinks Australian adults can’t handle a good, suspenseful horror-themed story at a decent viewing hour, even though it permits B-grade (or should that be Z-grade?) vampire and other horror movies to be screened after 10.30pm, as part of the Awful Movies show hosted by Deadly Earnest (the nom-de-screen of local television personality Ian Bannerman, seen above in character). However, that show plays on another network, so it is unlikely that we’ll see The Man Trap turn up there any time soon.

Meanwhile, the AFCB is still reviewing some of the first series episodes, but hopefully they won’t ban any more from screening in the normal Star Trek timeslot. However, the review process seems to have thrown any adherence to the US screening order out the window and the seven episodes shown so far have appeared in quite a different sequence. Commencing with The Corbomite Manoeuvre as the first episode, we’ve now seen Menagerie (parts 1 and 2), Arena, This Side of Paradise, A Taste of Armageddon and Tomorrow is Yesterday. Galileo Seven is scheduled for this coming Thursday. My favourite so far? Tomorrow is Yesterday : I'm always up for a time travel story.

This order may be at least partly based on what TCN-9 has available while the AFCB completes its reviews. But it could also be that the television station staff have been indulging in the apparently common practice (so I’m told by my friend at the Australian Broadcasting Commission) of picking episodes at random off the shelf, when no specific screening order has been defined. Still, as long as we get to see the rest of the episodes, in whatever order, I’ll be happy, even if we will only be watching them in black and white (as we’re not likely to get colour TV in Australia until the mid-1970s on current government planning).

A Sydney Exclusive For Now
Star Trek is only screening in Sydney at the moment, although it will be shown nationally later in the year on other Nine Network capital city stations. The reason for this broadcast strategy is not clear, but perhaps Nine is waiting to see how popular the series is in Australia’s largest market before scheduling it elsewhere? Even though the various Irwin Allen productions have had reasonable ratings on Australian television, science fiction is still seen as something of a gamble by Australian commercial broadcasters and Nine may not be as confident in its purchase of the series as it seems.

On the other hand, rumour has it that Mr. Kerry Packer, the son of the Nine Network’s chief shareholder, media baron Sir Frank Packer, is something of a science fiction fan – I do have it on good authority that he’s a fan of that wonderfully quirky British series The Avengers. Maybe Mr. Packer wants to enjoy Star Trek in his home market of Sydney first, before sharing it with the rest of the country?


Everyone Loves Mr. Spock
While the arrival of Star Trek hasn’t had a huge promotional campaign attached to it – unlike the debut of Mission:Impossible (see below) – Sir Frank has certainly made use of the resources of his Australian Consolidated Press magazines and newspapers to plug the series. The Australian Women’s Weekly, the country’s most popular women’s magazine, is rather conservative and not exactly known for embracing “out there” interests like science fiction. Yet its television critic, Nan Musgrove, gave Star Trek a very positive review in her column (and it does feel like a genuinely positive review, not just a promotion for a Packer interest).

A full page colour spread about Star Trek (above) has recently appeared in the 2 August issue and a further article about Mr. Nimoy’s Emmy nomination in the 9 August issue. Articles about Star Trek have also appeared in the Packer-owned TV Week magazine and Daily Telegraph newspaper.

The television critics of other newspapers and television guides have also generally reviewed the series favourably, although one did dismiss it rather scathingly (but then, I think he dislikes science fiction as a matter of principle!) Mr. Spock certainly stands out as the most intriguing and popular character to the reviewers, and to letter writers to the newspapers and magazines. Several have also commented very favourably on the multi-national nature of the Enterprise crew and the lack of racial prejudice in the series – these latter comments undoubtedly influenced by the racial unrest we’ve seen in the US in recent times.

Who's Watching?
I’ve not been able to obtain any ratings figures yet for these early Star Trek episodes, so it’s hard to really judge the show’s popularity with the viewing audience. But if what I’m hearing at the university is anything to go by, and what my sister and her husband tell me they are hearing at the hairdresser and at work, people who would not consider themselves science fiction fans (or even interested in science fiction) are watching Star Trek and enjoying it.

And it’s not just the adults that are watching Star Trek, either. My niece Vickie, who recently turned 10, asked to be allowed to stay up and watch Star Trek for her birthday (as her normal bedtime is 8.30pm). Her first episode was Arena – and she was so taken by it that she refused to go to bed at the usual time the following week, insisting that now she is a "big girl", she's old enough to stay up an extra hour one night a week! Well, how could we refuse a budding fan? So now she joins her parents and I in our new Thursday night routine of watching Hunter at 7.30, followed by Star Trek at 8.30pm.


Spies are All the Rage
Hunter, which precedes Star Trek (and commenced on the same evening that Star Trek premiered), is a new Australian-made spy drama from the Crawford Productions stable. Better known for its radio dramas and police show Homicide, Crawfords has decided to cash in on the current popularity of the espionage genre by producing a very slick, American-style spy drama based around the exploits of John Hunter, a Bond-like intelligence agent for an Australian security organisation, COSMIC (Commonwealth Office of Security & Military Intelligence Co-ordination).

Being on the Nine Network, Hunter has also been heavily promoted in the Packer-owned press, but nothing like the way in which the 0-10 Network has promoted the debut of its prize overseas spy-drama purchase, Mission: Impossible. Ahead of that show’s first screening at the end of June, TEN-10 in Sydney flew 50 journalists and celebrities down to Canberra on a specially chartered flight. The station’s guests were treated to an in-flight meal of champagne, fillet mignon and “super spy cocktails” (served by silver-mini-skirted hostesses), before enjoying an exclusive preview of the first episode, screened at the museum within the Royal Australian Mint! The 0-10 network must be expecting great things from Mission: Impossible, to spend so lavishly on its promotion. 

Crawfords has preferred to spend its Hunter budget, not on promotion, but on extensive location filming. This has included segments of its first six-part story, The Tolhurst File, being shot on location at the Woomera Rocket Range. Hunter is the first commercial television programme to receive permission to film at Woomera, and it’s rumoured that Hector Crawford himself made use of his high-level political connections to obtain the clearances – because right now Woomera is a very busy place indeed!

ELDO Launches at Woomera
Of course, I wouldn't let a piece on science fiction go by without a bit on actual science as well–and there is plenty to report.

It’s been over twelve months since I wrote an update on the activities of the ELDO programme. After the Europa F-4 launch was un-necessarily terminated by the Range Safety Officer in May last year, a replacement flight to test the all-up configuration of the three-stage vehicle had to be arranged. This took place on 15 November 1966, with an active Blue Streak first stage and inert dummies of the French second stage and West German third stage. The rocket’s dummy test satellite also carried instrumentation to measure the conditions that a real satellite would experience during launch.

Fortunately, this test flight was a complete success, reaching a height of over 60 miles. The dummy upper stages separated successfully from the active first stage, with all the vehicle’s components falling, as planned, into the upper region of the Simpson Desert, south-east of Alice Springs in the Northern Territory.

Not so successful, however, was the flight of Europa F-6, launched just a couple of weeks ago on 4 August. This mission was intended to be the first trial flight with active first and second stages (the third stage and satellite still being dummies). Initially planned for 11 July, the flight experienced 10 aborts and launch delays over more than two weeks due to systems problems and weather.

When the mission finally launched, while the first stage once again performed as planned, the French second stage failed to ignite. The cause of this failure is not yet known, but as many components of the French Coralie stage were reaching the end of their operational life due to the launch delays, investigations of the failure are focussed on this aspect. A reflight, already dubbed F6/2 is being scheduled for later this year, possibly November.

An "Australian" Astronaut
And Australia now has its "own" astronaut, in the person of Dr Phillip K Chapman, just this month selected as part of NASA's second group of 11 scientist-astronauts. Although Chapman, who is now an American citizen (as he had to be, in order to be eligible for the astronaut programme), will not fly as an astronaut wearing an Australian flag on his shoulder, we are all excited that he will probably participate in the Apollo Applications Program, which is planned to follow-on from the initial Apollo lunar landing program: maybe he will even get to walk on the Moon as the Apollo programme expands?

Originally from Melbourne, Chapman (seen here in the back row, extreme right) is one of the first two naturalised US citizens to be selected as an astronaut. A physicist and engineer, specialising in instrumentation, Chapman studied at the University of Sydney and the Massachusetts Institute of Technology (MIT), from which he obtained a degree in aeronautics and astronautics.

Prior to his astronaut selection, Chapman's career has included studying aurorae in Antarctica, as part of the Australian expedition there during the International Geophysical Year. He also worked on aviation electronics in Canada before joining MIT as a staff physicist in 1961. Prior to his selection as an astronaut, Chapman has most recently been employed in MIT’s Experimental Astronomy Laboratory, where he worked on several satellites. I hope I'll have the opportuntiy to meet Dr Chapman some time soon, and I look forward to reporting on his future astronaut career. 

And while I wait for a real life Australian astronaut to make his first flight, I can at last enjoy the adventures of the crew of the USS Enterprise for myself – and hope that one day they'll add an Australian to its crew as well!



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Science / Space Race

[August 16, 1967] Boxes, Big Steel Boxes: The Rise of the Shipping Container

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by Cora Buhlert

A Strangely Familiar Monk

Poster The Monk with the Whip

A few days ago, Der Mönch mit der Peitsche (The Monk with the Whip), the latest movie in the Edgar Wallace series, premiered in West German cinemas. Director Alfred Vohrer delivers the best colour film in the Wallace series to date (the series switched to colour last year) and creates striking visuals as a scarlet robed monk stalks the fog-shrouded grounds of an exclusive girls' school. The organ-heavy score by Martin Böttcher contributes to the eerie atmosphere

Monk with the Whip
The Monk with the Whip is engaging in murder and villainy in the fog-shrouded woods.

However, the plot seems strangely familiar, probably because we've already seen this very same film one and a half years ago under the title Der unheimliche Mönch (The Sinister Monk). Star Uschi Glas even played a supporting role in the earlier movie.

Monk with the Whip: Uschi Glass
Sir John (Siegfried Schürenberg) and Inspector Higgins (Joachim Fuchsberger) comfort Ann Portland (Uschi Glas) after a run-in with the monk.

So has it finally happened? Has the Edgar Wallace series run out of ideas after a stunning twenty-nine movies in the past eight years? On the other hand, Edgar Wallace was a very prolific writer and much of his work remains unadapted. So maybe there is life in the old warhorse yet?

However, not just the Edgar Wallace movies have switched to colour. West German television will begin broadcasting in colour later this month to coincide with the Internationale Funkausstellung (International Radio Exhibition) in Berlin.

Magic Boxes

Meanwhile, a revolution just as significant as the switch from black and white to colour is quietly happening in a completely different sector. At the centre of this revolution is an unassuming 20 x 8 x 8.5 foot box of aluminium or corrugated steel: the shipping container.

Cargo ships may not be as glamorous as the big ocean liners and cruise ships or as impressive as a Navy destroyer or aircraft carrier, but they are the backbone of international trade. Pretty much every product from overseas, whether it's cars from Japan, import paperbacks and comic books from the US, coffee from Brazil, tea from India, canned pineapples from Hawaii or even that fanzine mailed from America, comes to you by cargo ship, because air freight is much too expensive and only reserved for the most urgent of cargos.

However, shipping cargo from one port to another takes time. Now unless there is a revolution in engine technology, which is currently not in sight, the speed of a modern ship has reached a maximum. The SS United States set The Blue Riband record for the fastest crossing of the Atlantic fifteen years ago, and this achievement is not likely to be broken anytime soon.

But the actual sea voyage is only a part of cargo transport. Freighters spend a large chunk of time in ports, because loading and unloading the cargo takes a lot of time and manpower (roughly twenty longshoremen are needed to load or unload a single freighter). Hereby, a large part of the problem is that cargo comes in all shapes and sizes. Cars are different from sacks of coffee, which are different from cans of pineapples, which are different from bales of cotton, which are different from boxes of books, which are different from bags of mail. All of these differently sized cargos must be individually unloaded, with the help of cranes, where necessary.

Loading the MV Rothenstein in Port of Sudan
Longshoremen are loading bags aboard the MV Rothenstein in Port of Sudan in 1960.

Bags being unloaded in the port of Bremen
Bagged cargo is being unloaded in the port of Bremen.

Cotton bales being unloaded in the port of Bremen
Bales of cotton are being unloaded in the port of Bremen.

Damaged coffee bag
Another drawback of breakbulk cargo is that the cargo can get damaged, such as these coffee beans spilling out of a bag in the cargo hold of a freighter.

Father of the Modern Shipping Container

The slow loading and unloading process is a constant source of frustration for shipping companies. Among the frustrated was a man named Malcom McLean, co-owner of a trucking company from North Carolina. Some thirty years ago, McLean had the brilliant idea that instead of the current time-consuming process, it would be much quicker to just load a trailer with the cargo onto a ship and then unload trailer and cargo at the destination and connect it to a tractor unit.

Eventually McLean refined his idea to load not entire truck trailers onto a ship, but simply transport the cargo in boxes of the same size that are easy to load, unload and stack, whether they contain books or shoes or sacks of coffee or bales of cotton or canned pineapples or bags of mail. And thus, the shipping container was born.

Malcom McLean
Malcom McLean overlooks his empire in Newark in 1957.

Initially, the shipping industry was sceptical about McLean's idea – after all, a box would add extra weight and reduce the available payload – and he had problems finding backers. So in 1955, he sold his share in his trucking company, bought a steamship company he named Sea-Land Corporation Ltd. and two decommissioned US Navy tankers, which he had converted for transporting containers. The first of these two ships, the SS Ideal X, disembarked on its first voyage from Newark to Houston on April 26, 1956.

Container aboard the Ideal X
Containers being loaded aboard the Ideal X for its first voyage in 1956.

The breakthrough for the shipping container and a lucrative contract for Sea-Land finally came with the Vietnam War, because McLean's containers turned out to be ideal for transporting supplies to the US troops in Vietnam.

The Container Comes to Bremen

But while McLean and Sea-Land were slowly revolutionising cargo shipping in the US, European and particularly West German shipping companies remained sceptical of this new-fangled container idea. And so it took until May of last year for Sea-Land to start a regular transatlantic cargo service and for the first container vessel, the MV Fairland, to come to Europe.

The Fairland's first port of call was Rotterdam. Her second port of call was my hometown of Bremen and this is why I was lucky enough to see the Fairland and her cargo of miracle boxes in person. A friend of mine works as an engineer at the AG Weser shipyard and was asked to stand by with a team of technicians and electricians in case there were any problems while unloading the Fairland's cargo of containers. He invited me along to serve as an interpreter in case of language issues.

Fairland in Bremen port
The MV Fairland moored in the port of Bremen last year.

And there definitely were problems unloading the Fairland, because the port of Bremen is not set up for the handling of containers and German trucks turned out to be not all that well equipped for transporting containers with American dimensions. And because containers are still very new in Europe, things like corner castings and twist-locks, which keep the container in place aboard a ship or on a truck bed, are unknown here.

MV Fairland in the port of Bremen
Another look at the MV Fairland in the port of Bremen last year. Note the containers on deck.

The first of the 226 containers on board was unloaded without a hitch. However, disaster struck when the second container, a refrigerated unit called a "reefer container", carrying frozen chicken legs from Virginia, slipped from the hook of the on-board cargo crane of the Fairland and crashed down onto the driver's cab of a brand-new truck waiting below. Thankfully, the driver was not seriously injured. The container survived the fall as well, as did the chicken legs, though the truck did not.

While the Fairland was being unloaded, several Bremen merchants and representatives of West German shipping companies were watching the proceedings with great interest. Initially, the merchants and shipping companies were highly sceptical and the accident during the unloading of the second container did not help matters. However, when the Fairland was fully unloaded after only sixteen hours and two shifts rather than the customary several days or even weeks, depending on the size of the ship and the type of cargo, the gentlemen were intrigued.

The Container Revolution

The Fairland would not remain the only container freighter to moor at the port of Bremen. But while there was still a lot of scepticism towards the metal box, Bremen senator of harbours Georg Bortscheller (nicknamed "Container Schorse" for his championing of container shipping) and Gerhard Beier, head of the Bremer Lagerhaus Gesellschaft, the company which manages the loading, unloading and storage of cargo in the harbours of Bremen and Bremerhaven, were both convinced by Malcom McLean's idea and also saw great potential for Bremen's harbours in the introduction of the shipping container. Because if Bremen's harbour was better set up to handle containers than competing harbours like Hamburg, Rotterdam or Antwerp, container ships and the resulting business would go here. And indeed, the United States Line and the Container Marines Lines now have a regular container service to Bremen in addition to Sea-Land.

Senator Bortscheller
George Bortscheller a.k.a. "Container Schorse", Bremen's senator of harbours.

As a result, the first specialised container bridge was installed in Bremen harbour in October 1966, only five months after the arrival of the Fairland. Now container vessels could be unloaded even faster than before. Last months, the 100,000th container was unloaded in Bremen harbour, a remarkable number considering that the first 100 containers were unloaded from the Fairland only a little more than a year ago.

First container bridge in the harbour of Bremen
The first container bridge in the port of Bremen began operations in October of last year.

But West German shipping companies were also taking note. The first container vessel built in West Germany, the Bell Vanguard, was launched in March 1966 in Hamburg, two months before the Fairland arrived in Bremen. But though the Bell Vanguard was commissioned by the West German shipping company Jürgen Heinrich Breuer of Hamburg, it was chartered out to the Irish shipping company Bell Lines and it currently in service between Ireland and continental Europe.

Bell Vanguard
The MV Bell Vanguard, the first container vessel built in West Germany.

Meanwhile, two of the biggest West German shipping companies, the Hamburg-Amerika-Linie a.k.a. Hapag of Hamburg and the Norddeutscher Lloyd of Bremen are also getting into the container business. Initially, Hapag had some of its fast freighters of the Westfalia und Nürnberg classes converted to be able to transport containers in addition to regular breakbulk cargos, while the Norddeutscher Lloyd is doing the same with Burgenstein class vessels and the brand-new fast freighters of Friesenstein class. My friend, who works at the AG Weser shipyard, is in charge of these conversions and is currently overseeing the freighters being outfitted with twist locks, plugs for reefer containers and rails to allow for moving and storing containers on deck.

MV Alemannia
HAPAG's MV Alemannia, retrofitted for container transport.

MV Bayernstein
The Norddeutscher Lloyd's MV Bayernstein, retrofitted for container transport.

MV Birkenstein
The Norddeutscher Lolyd's MV Buntenstein, retrofitted for container transport.

But both companies have even bigger plans and the long-time rivals are cooperating to make them a reality. For Hapag and the Norddeutscher Lloyd are planning to order four dedicated container vessels of their own and will jointly operate them under the name Hapag-Lloyd. The first two of these ships, the MV Weser Express and MV Elbe Express, are expected to go into service next year. This is good news, particularly for the troubled Hapag, since one of their ships, the freighter MV Münsterland, is currently stuck in the Great Bitter Lake in the Suez Canal due to the Six Day War. It is unknown when the Münsterland will be able to return to Hamburg.

Freighters trapped in the Suez Canal due to the Six Days War
Hapag's MV Münsterland and several other freighters stuck in the Great Bitter Lake in the Suez Canal due to the Six Days War.

Will the container revolution continue or will it fizzle out? So far, the future is still up in the air. However, the rapid growth of container turnover in the harbour of Bremen, the fact that Senator Bortscheller has announced that a brand-new container terminal will be built in the harbour of Bremerhaven as well as the fact that big shipping companies such as Hapag and the Norddeutscher Lloyd are jumping into the container business indicate that the shipping container is not a passing fad, but here to stay.

The container does have its drawbacks. For example it endangers the jobs of many longshoremen, but overall the world will profit from the rise of the container and the faster turnover times it makes possible, because it means that goods from overseas, whether coffee, tobacco, cotton, canned pineapples, Japanese cars and radios, frozen chicken legs from Virginia, books and magazines, and yes, even the postage for that fanzine mailed from the US, will become more plentiful and cheaper. And this is something that will benefit us all.

MV Europa
Freighters may be the backbone of the shipping industry, but the glamour still plays a role as well, as exemplified by the Norddeutscher Lloyd's flagship, the beautiful MV Europa, which is offering both liner service between Bremerhaven and New York as well as cruises.

MV Europa in the foggy outer Weser
The MV Europa on the foggy outer Weser. However, she'll soon reach sunnier climes.

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Science / Space Race

[July 22, 1967] Getting the mail through (Australia introduces Postcodes)

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by Kaye Dee

In my first article for the Journey, just over three years ago, I talked about rocket mail and flying postmen. Well, we haven’t seen either of them yet – despite continual promises that they are “only a few years away”. This month, though, Australia has taken a step into the future of postal technology with the introduction of Postcode, the new national mail sorting system.

Zipping the Mail Along
Postal codes are not exactly new. They were first developed in large cities like London (where they were introduced in 1857) to help improve the speed of mail sorting and delivery as populations and the size and complexity of cities grew.

Modern postal codes were first introduced in the Ukrainian Soviet Socialist Republic in 1932, followed by Germany (1941), Singapore (1950) and Argentina in 1958. Britain began introducing its current postal code system in 1959, while the US Postal Service introduced the five-digit ZIP code in 1963. I was interested to learn as I prepared to write this article that the ZIP part of ZIP code is actually an acronym standing for Zone Improvement Plan. I always thought that it was just a play on the idea of zipping, or speeding, the mail along to its destination. Switzerland was the most recent country to introduce postal codes before Australia, in 1964.

Mechanising Mail Sorting
What made the Postmaster General’s Department (PMG), which manages all Australia’s postal, telephone and telegraph services, decide that we needed to follow suit and speed up our mail by using a postal code system? After all, Australia’s current population is only 11.87 million – less than the population of New York City, which I understand is about 15.6 million.

Until now, mail sorting in this country has primarily been done by skilled human sorters, who have a detailed knowledge of geographical localities, reading the address on each letter. However, there are about 8,000 delivery offices around the country, so getting the mail to its final destnations has required at least two or three stages of sorting.


Mail sorting at the Sydney General Post Office in 1964

Australia has long been a world leader in in postal service mechanisation, and as early as 1958, the PMG decided to introduce large-scale mechanical mail sorting systems across Australia. As the first stage of this plan, the Sydney Mail Exchange opened in the suburb of Redfern in 1965, to automate and centralise the mail sorting facilities for New South Wales. It’s the largest and most advanced mechanised mail centre in the Southern Hemisphere, and the new electronic equipment and technology is attracting Worldwide interest. I’ve even heard that the Mail Exchange’s design concept is being considered as a possible future system by the US Postal Service.


Sydey's ultra-modern new mail exchange, in the inner-city suburb of Redfern

Sydney is our largest city, and New South Wales, the most populous state, so it makes sense to introduce a new Postcode system to work in conjunction with the state-of-the-art electronic mail handling equipment at the Sydney Mail Exchange, through which so much mail passes. Postcodes simplify the sorting process, as the mail sorter is now a coding operator, who enters the postcode using their data entry terminal, enabling the letters to be rapidly sorted electronically and speedily despatched to their delivery offices.


The Sydney Mail Exchange's state-of-the-art data entry system for the new sorting computers. Conveyors drop individual letters in front of the operators, who then type the postcode or suburb identifying the letter’s destination

The computers controlling this process occupy a large amount of space in the Mail Exchange building. Similar mechanised sorting systems will be gradually introduced around the country over the coming years: they’ll be immediately able to take advantage of the Postcode system to speed their mail sorting, without many of the teething problems that have bedevilled the Sydney mail Exchange.

The Australian Postcode System
The Postcode system was introduced on Saturday, 1 July. The new four-digit number system replaces some earlier postal sorting systems, such as Melbourne's letter and number codes (e.g., N3, E5) and a similar system that has been in use in rural and regional New South Wales. Nearly 5,000 postcodes have been allocated across the country, to every city, town, suburb and small regional centre.

Postcodes have been allocated following a broad geographical pattern, with Postcode numbers for capital city suburbs beginning in the west and moving to the north, east and south. A similar pattern is followed for regional country areas. The first digit of the Postcodes in each station corresponds to radio station call signs for that state: 2 (New South Wales and the Australian Capital Territory – our equivalent of the District of Columbia), 3 (Victoria), 4 (Queensland), 5 (South Australia), 6 (Western Australia), 7 (Tasmania) and 8 (Northern Territory).

I think this is a good idea because everyone knows the radio callsigns, so it will make it easier to remember Postcodes for their friends locally or interstate. Subscriber Trunk Dialing for telephones, which commenced last year, is also using the state radio call sign number as the basis of the dialing codes for each capital city, so I imagine that will help with remembering the direct dial codes too. 

Getting the Word Out

The first edition of the Postcode booklet, listing every national Postcode, is being distributed free by mail this month to every Australian household and business address. A total of 4.5 million booklets are expected to be distributed, along with a postcard identifying the recipient’s own postcode. Of course, with 5,000 postcodes to include in the booklet, and with some geographical oddities to contend with, it’s not surprising that diligent nit-pickers have already found faults in the booklet to complain about and have been writing carping letters to the editors of local and major state newspapers.

There has been extensive advertising about the new Postcode system in the newspapers and on television and radio, but so far, we have not been treated to a catchy jingle like the one that introduced us to decimal currency last year.

The PMG is hoping that if we all start using the Postcodes properly at the end of addresses, not only will it improve the speed of mail delivery, but that next year it will make it easier to introduce “post office preferred-size envelopes” as well, whose standardised sizes will further improve the speed of mechanised mail sorting! 

And then I can finally get my postcards from the Traveler in a timely manner!



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Science / Space Race

[June 28, 1967] Around the World in Two Seconds (Our World Global Satellite Broadcast)

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by Kaye Dee

I love how our world is drawing closer every day to some of the amazing futures that science fiction has spread before us. I’ve written before about the importance of satellite communications in connecting this divided planet. Just two days ago, 24 countries around the globe were linked together in the first world-spanning live satellite broadcast, titled – appropriately enough – Our World.

Our World's visual symbol incorporates a modernised version of da Vinci's "Vitruvian Man", with arms encircling the globe, and vertical and horizontal lines representing longitude and latitude

Down Under Comes Up Live – from a town with no television!
For us in Australia, being instantaneously connected to the rest of the world through phone and television is a major step in breaking the “tyranny of distance” that has shaped our national history. Our first Satellite Earth Station was opened just last October in Carnarvon, a remote township in Western Australia, whose only other connection to the rest of the world is a phone line. It’s no wonder NASA wanted to provide a satellite connection back to the United States for its tracking station located there, using the INTELSAT communications network. Just after the station opened, a mishap with the launch of the first INTELSAT II satellite (Blue Bird) on 26 October placed the satellite into the wrong orbit, providing an opportunity for the first satellite broadcast from Down Under.


SES Carnarvon's unusual antenna, one of only four that have been built for the INTELSAT network. Officially described a 42-foot aperture cassegrain-fed folded-horn antenna, you can see why it's nicknamed the “sugar scoop”

According to my friend at the Australian Broadcasting Commission (ABC), some hasty calculations revealed that short segments of television broadcast could be relayed to the United Kingdom via INTELSAT II in its unplanned elliptical orbit. So the ABC and the BBC quickly put together a plan for a live telecast, called Down Under Comes Up Live, from Carnarvon – a town which doesn’t even have a television service!

Connection was the theme, and ordinary people were the stars of the show. The program reunited three families of British immigrants living in Carnarvon, two of whom who happened to be employees of the NASA tracking station, with their relatives in the BBC studios in London. It also included some interviews with local residents talking abut life in their remote community. Introducing new babies to family is a universal ritual, and it's delightful to see that it was one that played out in both Down Under Comes Up Live and Our World.

Down Under Comes Up Live was a direct one-way broadcast (a return signal was not possible for technical reasons) that was a complex undertaking (and a good rehearsal for our involvement in Our World). Without a local television station in Carnarvon, ABC outside broadcast vans and their technical staff made a 560 mile trip from Perth to produce the program. The vision was sent live to London from the satellite station, but the audio to and from London was transmitted separately by cable.

On Friday 25 November 1966, more than twelve minutes of television was broadcast to London. Although the program was seen live in the UK, rather ironically, we couldn’t see it live in Australia because there are no television links between Carnarvon and Perth. We had to wait for a few days to see this history-making program, once a film copy of the UK broadcast was flown back to Australia.

Incoming – Australia Day at Expo 67
Apart from a few test transmissions, it was just three weeks ago that we saw the first satellite broadcast into Australia – a live telecast of Australia’s ‘special day’ at Expo 67 in Montreal. This time the transmission came via NASA’s Applications Technology Satellite (ATS)-1. To support this program, NASA has established a temporary satellite station at Cooby Creek dam, about 14 miles north of Toowoomba in Queensland.

The picturesque setting for NASA's Cooby Creek tracking station that brought both Australia Day at Expo 67 and Our World to Australia via ATS-1

Several hundred thousand people around the country, including my sister’s family and I, watched live through the early hours of 7 June our time, as Australia took centre stage in Canada. The program commenced with Prime Minister Harold Holt officially opening the Australian Pavilion at the Expo. Special events for “Australia Day” included boomerang throwing, sheep-dog trials, wood chopping contests and tennis matches with members of the Australian Davis Cup team. Celebrity was an important theme for the variety concert, "Pop Goes Australia", which showcased Australian talent, including the internationally-known Rolf Harris and The Seekers.

The clarity of the satellite picture from Montreal was surprisingly good: I’ve heard that hundreds of viewers rang the ABC in Sydney wanting to be assured that the vision really was being broadcast live from Canada! I just wish I could find some decent reproductions to show you or had thought to take a picture on the screen of our TV set. 

Our World – joining hands (almost) around the planet
So, with just two satellite broadcasts under its belt, from 4.50am Australian Eastern Time on 26 June, Australia participated in the Our World program, helping to string Puck's "girdle around the world". We joined 13 other nations in providing television content for the first live global television broadcast, which instantaneously linked 24 countries on six continents via four communications satellites, with the signals travelling around the world in just 2 seconds!

The brainchild of the BBC, though produced under the auspices of the European Broadcasting Union, the global telecast was controlled from the BBC in London, with America’s National Educational Television in New York City feeding items from the United States, Canada, Mexico, Australia and Japan to the British Control Centre. Literally thousands of technicians handled the outside broadcasts and studio operations around the world. Satellite ground stations in Australia (NASA's Cooby Creek facility again), Japan, Canada, the United States, Britain and France transmitted sound and vision to and from the satellites. As each of the contributing countries provided commentary in their own language, there was also the necessity of rapidly translating the various languages, so that everyone in the receiving countries could understand what was being said.

The technical complexity of Our World is evident from this diagram, which shows just part of the world-wide links between television stations and satellites necessary to make the global broadcast a reality

Given the incredible technical complexity of the television transmission, it’s quite amazing that the two-hour program was carried through with very few technical problems – especially when the entire broadcast was televised live, with no filmed insertions or other previously produced material apart from the opening montage. We saw everything as it happened.

Our World was intended as a major achievement for both space technology and international relations, a bridge between East and West in these troubled times of wars cold and hot. Unfortunately, at the last minute, politics reared its ugly head and the USSR and several Eastern European nations that were originally going to participate pulled out of the broadcast just a few days before, as a protest against the recent war in the Middle East. This was disappointing and made for some hurried re-arrangement of parts of the program, but it didn’t dampen the mostly aspirational tone of the broadcast as a celebration of human achievement and hope for a more peaceful future. There was also the irony that a US segment about the Glassboro, New Jersey conference between American president Lyndon Johnson and Soviet premier Alexei Kosygin was still included in the broadcast, although – since the Our World producers insisted that no politicians could be shown – only an external view of the house where the conference was being held was televised.

New Babies and their World
The broadcast crossed countries, seas and time zones, and was presented as fusing “yesterday”, “today” and “tomorrow” (by dint of the different time zones around the world) into a globe-encircling “now”. The birth of several babies across the world opened the program, which was presented in a sense as a “survey” of the world into which these newborns are entering.

A baby in Mexico, born live on television for all the world to see!

The babies are introduced to their new world through several themes: This Moment's World (what people were doing are doing at that moment around the world); the Hungry World (what scientists are doing to attempt to solve or alleviate the hunger problem); the Crowded World (looking at proposed solutions to the population explosion); Aspiration to Physical Excellence (the continual attempt to develop physical skill); Aspiration to Artistic Excellence (the drive to excel in the arts); and the World Beyond (focussed on astronomy and space travel. Within these themes, vignettes of life and activity from around the world formed the tapestry of the program. Even if some of the actual presentation was, quite frankly, dull and pedestrian (the excitement was, after all, the fact that we were seeing something live from another part of the globe), I thought the concept was an interesting way to approach telling the story of our planet. If an extra-terrestrial civilisation one day happens to intercept this program as its signals travel through space, they'll learn a lot more about the reality of the Earth and its people from Our World than they will get from episodes of I love Lucy.

Everyday Life

The theme This Moment's World presented a panorama of people and activities in various parts of the globe, moving through evening in Europe to afternoon in New York City, with a visit to Tunis along the way. I loved the views of old and new parts of the city. We saw Marshall McLuhan being interviewed in a Toronto television control room, people swimming at the beach at lunchtime in Vancouver, Canada (making us Aussies all envious on a cold winter's morning) and workmen digging a subway at 4am in Japan. Since the program took place between 5.00 am and 7.00 am Australian Eastern time, our first contribution commenced at 5:22 am local time, with a visit to the Hammer Street Tram Depot in Melbourne, where the first tram of the day was departing to service Monday morning commuters. 

This segment was the first cross to the Southern Hemisphere and came directly after the broadcast from Japan. The switch from Japan to Australia was apparently the most technically complicated of the program, as the Japanese and Australian satellite stations had to switch immediately from transmission to receiving mode and back again. The material coming into Australia also had to be converted from the 525-line system to our 625-line format for local broadcast, while the segment going out of Australia had to be converted from 625 to 525-line in order to be sent back to the US and then on to London!

Sweden gave us the first – and almost the only – female presenter in the program!

Global Concerns
Australia also featured in the Hungry World theme, which concentrated on food production and the issues of feeding an ever-growing world population. In addition to items from the United States and a shrimp farm in Takamatsu, Japan, we visited the Canberra phytotron, a laboratory run by the national scientific research agency, CSIRO. In the phytotron, plants can be grown under a wide range of closely controlled climatic conditions. It’s claimed to be one of the world's finest and most up-to-date facilities for plant research, and a number of international scientists work there alongside local researchers.

The CSIRO phytotron's Director, Dr. Lloyd Evans, at work in his plant laboratory. Apparently, he often starts his workday at 5am, so he didn't have to get up earlier than usual for the show!

A couple of segments that were of interest to me in The Crowded World theme were a visit to Cumbernauld (near my father’s home town of Glasgow, Scotland), which was the recipient of an international award for best planning in a new town, and a glimpse of Habitat, a new concept of living accommodation, on display at Expo '67.

Human Achievement
In Aspiration to Physical Excellence, there were contributions from Rome, Sweden, France (where a parachutist made a dizzying free fall with a camera strapped to him), and Winnipeg, Canada, where a 16-year-old Butterfly champion attempted to beat her own world indoor swimming record.


We get to watch live as actors rehearse the wedding scenes from Italian director Franco Zefferelli's next film, Romeo and Juliet
Aspiration to Artistic Excellence included a visit to the Maeght Foundation museum of modern art in France, with artists Marc Chagall and Joan Miro, Leonard Bernstein and pianist Van Cliburn rehearsing Rachmaninoff's Third Piano Concerto. Opera singer Maria Callas, and painter Pablo Picasso also featured. In the context of this theme, it’s interesting to note that the Our World anthem, which accompanied the opening montage was composed by Frenchman Georges Delerue, whose musical score credits includes the recent Academy Award winning motion picture, A Man for All Seasons. He wrote the melody based on the rhythm established by the words “Our World”, sung in 22 different languages by the Vienna Boys’ Choir.

But the highlight of this theme has to be a ‘fly on the wall’ visit to a recording studio where the fabulous Beatles were recording their latest anthem “All You Need is Love”, which was specially written for the Our World broadcast! You can see them below, surrounded by their many friends in the music world, who came to the recording party and became informal backing singers. The black and white shot shows how we saw the FAB Four in the live broadcast, while the colour photo was taken just before the televised performance. 

 
Reaching for the Stars
The World Beyond theme took us to the heart of the Space Race, with a visit to Cape Kennedy to see a Saturn V Moon rocket on the pad being readied for its first flight. The telecast also came to a close on the theme of outer space, with a visit to Australia’s Parkes radio telescope – at 210 ft. the largest fully-steerable radio telescope in the world. Here we sat in on an observation of the most distant object currently known – a mysterious quasar only discovered last year by the Parkes telescope's director, Dr. John Bolton. It’s so far away that its light and radio signals take 13,000 million years to reach us!

An ABC cameraman, wearing a heavy jacket in the early morning winter cold, prepares for filming the Our World segment at the Parkes Radio Telescope.

So that was Our World. A fascinating mix of banality and creativity, made magical by the technology of the Space Age, and the knowledge that everyone watching was sharing the experience simultaneously with millions of others across our planet in a way that has never before been possible. With a worldwide audience estimated between 350 and 700 million, the broadcast was a potent demonstration of the potential reach of satellite television. I'm sure that before too long, satellite television from around the world will be a regular occurrence, bringing us news, sport, entertainment and major world events – and we here in Australia will have to get used to being up at all hours of the night to watch! But I wonder what will top this broadcast's incredible audience reach? The first manned landing on the Moon, perhaps?



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Science / Space Race

[June 14, 1967] What's Easy for Two (Venus 4 and Mariner 5)

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by Gideon Marcus

Red Venus?

Every 19 months, Venus and Earth reach positions in their trips around the Sun such that travel to the former from the latter uses a minimum of energy. Essentially, a rocket blasts off and thrusts itself toward the Sun just long enough to drift inward and meet Venus after about half an orbit (a direct path would be very costly in terms of fuel use). The less energy used, the bigger the spacecraft can be sent. That means more payload for experiments.

The Soviets have been trying to reach the Planet of Love, Earth's closest neighbor (besides the Moon) for more than six years now. In February 1961, they launched Venera 1 (Venus 1), the first interplanetary probe to fly by another world–but it had gone silent by the time it got there.  Veneras 2 and 3 went up three opportunities later, in November 1965, but fell silent the next spring, just before reaching their target.  Indeed, Venera 3, a soft-lander, is believed to have rammed the cloud-shrouded world, becoming the first artificial object to reach another world.  Either way, no useful data was received.

Why didn't they launch any Veneras in 1962 or 1964?  In fact, it looks like they did.  The Soviets don't herald their failures.  Nevertheless, according to NASA officials, we have a pretty good catalog of them, thanks to careful parsing of Russian news reports as well as radar and telemetry data we've managed to gather.  Three Russkie Venus probes were launched in September 1962 and three more in February 1964.  Getting out of Earth orbit can be tough, requiring a second firing of onboard engines once a spacecraft is circling our planet.  Apparently, these six probes never got away.

But Venera 4, launched on June 12, 1967, has apparently passed that first hurdle.  Moreover, at one and a quarter tons, it is several hundred pounds heavier than any of its predecessors.  We don't know much about what's on the latest Communist probe, but scientists speculate some of the extra weight has been devoted to heat shielding.  Venus is very hot, perhaps 900° Fahrenheit, and it is believed that heat is what caused Venera 3 to fail.  Given that TASS, the Soviet news service, reported that Venera 4 is going to Venus, rather than by, it is assumed the spacecraft will make another landing attempt.

Provided it doesn't go slient like its predecessors.  Communicating across planetary distances is a hurdle the Soviets only recently surmounted with their Zond 3 probe, which tested radio reception at about 150 million kilometers' distance–far enough for a Martian mission.  Essentially, Zond 3 was the Soviet version of Pioneer 5–but five years later.  This is suggestive as to the Soviet level of communications technology, at least.  America would seem to have the clear lead there.

Well, I wish the Soviets luck.  Politics or no, I want to know more about that mysterious, seared world that is Venus!

Yankee Two-dle

If Venera 4 fails, it has a back-up of sorts.  Mariner 5, itself a back-up for the Mars-bound Mariner 4, was launched today early this morning, destination: Venus.

Already several hundred thousand kilometers from Earth, zooming at more than 10,000 kilometers per hour, it should reach Venus in October.  The spacecraft, launched via Atlas-Agena, the same rocket that launched our first Venus probe, Mariner 2, is barely a quarter the mass of Venera 4.  Moreover, Mariner 4's TV camera has been deleted, a decision that likely irks Venus scientist Dr. Carl Sagan, who insists doing so is short-sighted, clouds or no. 

But that removal, along with the reduction in the size of the solar panels (less is needed so close to the sun) means that when Mariner 5's planned flight path brings it within 3000 kilometers of Venus, it will be able to investigate the planet with a wide suite of instruments.  An ultraviolet photometer should not only refine temperature estimates of the Venusian upper atmosphere, it will tell us a bit about what gasses constitute it.  For instance, if there be any water there, perhaps life exists in the cloud tops, above the intense heat at the surface.

The rest of the instruments are likely ho-hum for the general audience, but should return a bonanza for scientists.  They include a magnetometer and various radiation sensing equipment that not only will measure the Venusian version of the Van Allen Belts (if they exist–Mariner 2 couldn't find any), but also tell us a lot about the solar wind on the way to Venus.

I will say, I'm glad we're sending a craft to Venus, and it does seem we did it on the cheap ($35 million), but I think I'm with Sagan on this one: for all the effort, it seems we're not going to find out very much about Venus with Mariner 5.  Another reason to root for Venera 4.

And a good reason to write your Congressman about the importance of planning a bigger Venus shot, perhaps on the more powerful Atlas Centaur rocket, when the next opportunity rolls around in January 1969!

Want to find out what we currently know about Venus?  Come read our previous articles on the planet of love!



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Science / Space Race

[May 28, 1967] Around the World in 80 Months (May 1967 Space Roundup)

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by Gideon Marcus

Between the tragic aftermath of this year's twin space disasters (Apollo 1 and Soyuz 1) as well as the dramatic results from the Lunar Orbiter and Surveyor Moon explorers, it's easy to forget the amazing things being done in Earth orbit.

So here's a little news grab bag of some flights you may have missed over the last several months (and even years, in some cases):

Moscow calling

Two years ago, the Soviets joined the world of comsats with the orbiting of their first Molniya satellite.  Launched into an eccentric orbit that takes them up to geosynchronous altitudes but then swooping down to graze the Earth, they work in pairs to facilitate transmissions across the 11 time zones of the Soviet Union.

It's an impressive system–half a ton of satellite broadcasting at 40w of power, more than twice that of the Intelsat "Early Bird" satellites.  Unfortunately for the Soviets, it's also been a balky system.  Both of the first two satellites stopped working within a year, Molniya 1B failing to keep station in space.  It's a bad thing when your comsat moves out of position!  This is something more likely to happen in an eccentric orbit than in a more-stable geosynchronous orbit where a satellite goes around the Earth once every 24 hours, remaining more or less stationary (except for a little figure eight over the course of the day) from the perspective of the ground observer.  Worse, because the Molniyas scrape so close to the Earth, it doesn't take much to send them careening into the atmosphere, which happened to 1B March 17, 1967.

Still, the Soviets prefer their odd orbit because it's ideal for their purposes (giving coverage to Eurasia) and, I suspect, requires less booster power.  And it still carries the satellites high enough to return photos like this one, shot by Molniya 1A last year–the first all-Earth photo ever:

Molniya 1C was launched on April 25 last year, Molniya 1D on October 20.  They were replacements for their non-functioning companions.  But Molniya 1C may well have given up the ghost, too.  Molniya 1E was launched on May 24, apparently to replace it. 

May they solve their teething problems sooner rather than later!

A Pair of Imps

Out beyond the Earth's magnetic field is the sun's domain.  High energy plasmas (the "solar wind") and our star's magnetic field fill the vacuum of interplanetary space.  Not very densely, to be sure, but with profound effects on the planets and offering clues as to the nature of the stellar furnace that creates them.

It is not surprising that NASA has devoted so many satellites to understanding and mapping this zone given how many spacecraft (including the upcoming Apollos) will travel through it.  Explorer 18, Explorer 21, and Explorer 28 were all part of the "Interplanetary Monitoring Program" (IMP).  The first two have already reentered, and the last just stopped working a couple of weeks ago.  Luckily, virtually uninterrupted service has been maintained thanks to the launches of Explorer 33 and Explorer 34!


Explorer 33

Explorer 33, launched July 1, 1966, was supposed to be the first of the "anchored" IMPs, returning data from the orbit of the Moon (which does not have a magnetic field or radiations of its own).  Unfortunately, the satellite was shot into space a bit too rapidly to safely decelerate into orbit around the Moon.  Instead, it now has an extremely high (270,000 miles perigee!) but eccentric (low apogee) orbit from which it still can return perfectly good science.  Indeed, NASA planned for this eventuality.


Explorer 34

The other Explorer, #34, was just sent up on May 24.  It is a more conventional IMP and will pick up where #28 left off. 

With four years of continuous data, we now have terrific data sets on the Sun through a good portion of its 11-year cycle, including the recent solar minimum.  I look forward to a slew of reports in the Astrophysical Journal over the next few years!

Yes, I read those for fun.  Doesn't everyone?

Bright Future

If the IMPs exist to monitor the Sun's output, the Orbiting Solar Observatories' job is to directly watch the Sun.  Prior to 1967, two of these giant satellites had been orbited: OSO 1 on March 7, 1962, and February 3, 1965.  A third launch was made on August 25 of the same year, but it failed.

Sadly, the OSOs haven't quite provided continuous coverage over the last five years.  Still they have returned the most comprehensive data set of solar measurements to date.  And, as of March 8, the wiggly needles that mark the collection of data are jiggling again: OSO 3 has been returning data from its nine instruments on all manner of solar radiation–including and especially in the ultraviolet, X-Ray, and cosmic ray wavelengths that are blocked from terrestrial measurement by the Earth's atmosphere.

The timing is perfect–the Sun is just entering its period of maximum output.  OSO 3 will not only tell us more about the nearest star, it will report on its interactions with the Earth's magnetic field and the space environment in near orbit.

A Meteoric Rise

The Soviets have been awfully cagey about a lot of their launches.  Every couple of weeks, another unheralded Kosmos heads into orbit, stays there for a week, then lands.  It's an open secret that they are really Vostok-derived spy satellites that snap shots and return to Earth for film development.  This is utterly reprehensible–certainly WE would never do anything like that.

But while many of Communist flights have been hush hush, one subset of their Kosmos series has been pretty open: the weather satellite flights of Kosmoses 122, 144, 149, and 156!

The first of the Soviet meteorological satellites went into space on June 25, 1966, broadcasting for about four months before falling silent.  For a while, it seemed the Russkies were going to keep the pretty weather photos to themselves, but on August 18 of last year, they suddenly started sharing data over the Washingon/Moscow "Cold Line"–both visibile and infrared pictures, too.  It appears the delay was due to the Soviet reluctance to announce a mission until they're sure of its success.  It is entirely possible that some of the unexplained Kosmoses before 122 were failed flights.


Kosmos 122

The picture quality was pretty low at first, probably due to the length of the line the data must be sent over.  Improvements were made, and the new stuff is great.

Since 122, the Soviets have launched Kosmos 144 on February 28, 1967, Kosmos 149 on March 21 (it reentered on April 7–a failure of its weather-related mission, but it successfully tested the first aerodynamic stabilizer in orbit), and the latest Kosmos, #156, just went up on April 27, 1967.  It is my understanding that photos are being regularly shared with the National Environmental Satellite Service (NESS) in Suitland, Maryland.  I don't know if these are revolutionizing our view of the planet given our successful ESSA and NIMBUS programs, but it does give a warm glow of international cooperation.

If the nukes fly, at least we'll know if it's nice weather over their targets…

From the Far East into the Drink

The Japanese have been working their darndest to become the sixth space power (after the USSR, US, UK, France, and Italy).  Unfortunately, all of their efforts have thus far come up a cropper.

Their Lambda 4S rocket is the first one capable of launching a satellite into orbit, specifically an ionospheric probe with a 52 pound science package.  The problem is the vehicle's fourth stage.  The truck-launched Lambda 3 has been pretty much perfected, but when the new engine was put at the top of the stack, everything went to hell.


The successful precursor of the Lambda 4S, the Lambda 3

On September 26, 1966, the first Lambda 4S was lost when the fourth stage attitude control failed.  The fourth stage didn't even ignite the second time around on December 20.  That happened again on April 13 of this year during the third flight.

It looks like Nissan and JAXA engineers will be going back to the drawing board before trying another flight.  Maybe 1968 will be the year the Rising Sun joins the rising sun above the Earth…

What's next?

This summer, our eyes will surely turn beyond the Earth to Earth's twin, the planet Venus, for June marks the latest opportunity to send probes to the second planet at a premium on fuel consumption and payload allowance.  You can bet we'll be covering Mariner 5 and Venera 4 when they launch!


Testing Mariner 5



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