Tag Archives: nasa

The Man who took that One Small Step-Neil Armstrong 1930-2012

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Neil Armstrong’s official Apollo 11 astronaut portrait. Courtesy of NASA

Neil Armstrong’s official Apollo 11 astronaut portrait. Courtesy of NASA

In July, just after the 43rd anniversary of the Apollo 11 lunar landing, I wrote a blog post about the passing of first US woman in space, Dr. Sally Ride. Little did I imagine at the time that a month later I would find myself writing another blog to commemorate the passing of the commander of that mission, Neil Armstrong.

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Farewell Sally Ride, first US woman in Space (1951-2012)

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Dr. Sally K. Ride, first American woman in space, during the STS-7 mission in June 1983

Dr. Sally K. Ride, first American woman in space, during the STS-7 mission in June 1983. Image courtesy NASA

This week we have said goodbye to Dr. Sally K. Ride, the first American woman to make a spaceflight and a passionate promoter of science and engineering education for girls, who passed away on July 23 after a seventeen month battle with pancreatic cancer.
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What’s the link between Apollo 16, a Soviet Moon mission and the Powerhouse Museum?

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40 years ago, Apollo 16 landed in the Descartes region of the central lunar highlands. Image Courtesy NASA

This might sound like the set-up for a joke, but there really is a connection between the museum, NASA’s Apollo 16 mission and the USSR’s Luna 20 lunar sample recovery mission.
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Setting a Martian Endurance Record

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On May 20, NASA’s Mars Exploration Rover Opportunity set a new endurance record for operating on the surface of Mars, surpassing the record of six years and 116 days set by NASA’s Viking 1 lander almost 30 years ago.

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Artist's image of Mars Exploration Rover. Image courtesy of NASA.

Opportunity landed in Mars’ northern hemisphere on Mars on January 25, 2004 for a mission that was originally planned to last 90 sols (Martian days; approximately 92 and a half Earth days) and cover less than a kilometre. Not only has Opportunity far outlived its ‘design lifetime’ it has already travelled more than 20 km across the Martian surface and still has about another 12 km to go to reach its long term destination, Endeavour Crater.

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NASA image showing Opportunity's path across the Martian surface leading up to May 20. Image courtesy of NASA.

Opportunity’s twin rover, Spirit, actually landed on Mars three weeks before Opportunity: but due to the low amount of sunlight reaching its solar panels in Mars’ southern hemisphere winter, Spirit has been out of communication since March 22, and it is uncertain if the rover will survive the winter. If Spirit does resume communication when spring arrives, then it will actually become the holder of the Martian surface longevity record.

The previous record holder, Viking 1, landed on Mars on July 20, 1976. It was part of the Viking program, which consisted of two orbiters, each of which carried a stationary lander. Viking 2 arrived on the Martian surface on September 4, 1976 (Australian time). Viking 1 operated until November 13, 1982, more than two years longer than Viking 2 or either of the Viking orbiters.

A full-size model of the 'Viking 1' lander. Image courtesy of NASA.

A full-size model of the 'Viking 1' lander. Image courtesy of NASA.

The overall record for longest working lifetime of any spacecraft at Mars currently belongs to NASA’s Mars Global Surveyor, which arrived in orbit around Mars in 1997 and operated for more than 9 years. However, MGS’s record will soon be broken by another NASA orbiter, Mars Odyssey, which has been in orbit since 2001.

Happy Space Anniversaries

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Image courtesy of NASA

April was a busy month for milestone anniversaries of space events: so busy in fact that I didn’t have time to write this article and post it until now-on the 49th anniversary of the first US Mercury space mission. At 12.34am (eastern Australian time) on May 6, 1961 American astronaut Alan B. Shepard Jr. was launched on a short, 15 minute sub-orbital flight in the spacecraft Freedom 7, making him the first American and second person in space. Next year, for the 50th anniversary of human spaceflight, expect to hear a lot more about Shepard’s flight, and that of the first person in space, Soviet cosmonaut Yuri Gagarin (whose spaceflight anniversary is also in April!). We’ll also be celebrating the 30th anniversary of the Space Shuttle. In the meantime, let’s look back at some of the significant space anniversaries that occurred in April 2010…..

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Television Infrared Observation Satellite TIROS. Courtesy of NASA

Fifty years ago, as the Space Race between the United States and the Soviet Union was heating up, two US satellites were launched in April 1960 that were the forerunners of technologies that we take for granted today: TIROS (Television InfraRed Observation Satellite)-1, the world’s first dedicated weather satellite, and Transit 1B (Transit 1A failed to reach orbit), the first navigation satellite. Essentially a television camera in orbit, TIROS -1 was only operational for 78 days, but it proved its worth by detecting and tracking a cyclone in the Pacific Ocean-the first time it had been possible to chart the progress of one of these potentially devastating storms. Although the Transit navigation system was originally developed to provide guidance for submarine-launched ballistic missiles, it was soon opened up to a variety of civilian uses and was the predecessor of the GPS (Global positioning System) satellite network we use for finding our way around today.

Also ‘launched’ in April 1960 was the world’s first SETI (Search for ExtraTerrestrial Intelligence) experiment, Project Ozma, conducted at the National Radio Astronomy Observatory in Green Bank, Virginia, by SETI pioneer Frank Drake. Project Ozma (named for a character from the Oz books by L. Frank Baum) targeted the stars Tau Ceti and Epsilon Eridani in a search for radio signals that might be evidence of intelligent life beyond the Earth. After 150 hours of intermittent listening between April and July, no extraterrestrial signal was detected, but Project Ozma became the prototype for future SETI searches.

Forty five years ago, another important step on shaping today’s world took place, with the April 6, 1965 launch of INTELSAT-1, also known as Early Bird, the first communications satellite operated by the International Telecommunications Satellite Organisation (INTELSAT). INTELSAT was a consortium of countries (including Australia, which would become the sixth largest shareholder) created to develop the first world-wide satellite communications network. INTELSAT’s early success in providing satellite networks paved the way for our modern globally connected culture.

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Image courtesy of NASA

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For 5 days in April 1970, the world held its breath in the wake of the Apollo 13 accident, hoping that the crew of three astronauts would make it safely back to Earth following an explosion on board their spacecraft. Although unable to land on the Moon, Apollo 13 was judged a “successful failure”, with the mission rescued from disaster by the courage of the crew and the resourcefulness of NASA’s engineers, scientists and technicians on the ground. The first Earth Day was also held 40 years ago, on April 22, using one of Apollo 11’s pictures of the Earth hanging in the immensity of space as its icon image, to highlight the fragility of our home planet’s environment.

China celebrated the 40th anniversary of the launch of its first satellite, Dong Fang Hong (the East is Red)-1 on April 24, while India launched its first satellite 35 years ago, on April 19, 1975. Built by the Indian Space Research Organisation (ISRO) and launched by the USSR, the Aryabhata satellite was named after a 5th century AD Indian mathematician and astronomer. From modest beginnings, both China and India have grown to become leading spacefaring nations today.

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The Hubble against Earth's horizon (1997) Image courtesy of NASA

And finally, on April 24, 1990, NASA launched the Hubble Space Telescope, one of the most important scientific instruments of all time. Overcoming initial technical problems with its mirror, Hubble has proved to be vital research tool for astronomers, its discoveries helping to resolve some long-standing questions of astrophysics and revealing new cosmic mysteries to research.

On loan from the Smithsonian

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Photography by Marinco Kojdanovski, © Powerhouse Museum, all rights reserved.

Curators at the Powerhouse not only research information about the artefacts in our own collection, from time to time we assist external colleagues with their object research as well. Satellite propulsion engineer Alan Lawrie, author of histories of the Saturn V and Saturn I rockets, contacted the museum seeking information about the F-1 rocket motor in the Space exhibition. Together with former employees of the Rocketdyne company, which manufactured the F-1, Alan has been researching the location and identification of all the surviving F-1 rocket engines.

The most powerful single chamber liquid fuel rocket engine so far put into service, five F-1 motors were used in the first stage of the Saturn V rocket that launched the Apollo missions to the Moon. The only example on public display outside the United States, the museum’s F-1 is on long term loan from the Smithsonian’s National Air and Space Museum.

Unfortunately, the Smithsonian’s records had very little information about the history of this rocket motor and had incorrectly recorded its serial number, making it difficult for Alan to trace the story of this particular engine. Despite the difficulty of accessing the suspended engine, we were able to arrange for photos of the motor’s makers plate, which allowed for the correct identification of its serial number. This enabled a search of the surviving Rocketdyne records to establish the engine’s history.

We now know that the F-1 rocket motor in the Space exhibition was the 25th of 114 research and development F-1 engines produced by Rocketdyne and that it was probably manufactured in 1961. It was test fired 35 times.

Apollo at 40: celebrating the first Moon landing

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Forty years ago, on July 21, 1969, American astronaut Neil Armstrong, commander of the Apollo 11 Moon mission, became the first person to set foot on another world. This historic spaceflight marked the culmination of the so-called “Space Race”, one of the major Cold War propaganda battles between the United States and the USSR, which began in 1957, when the Soviet Union shocked the world by launching the first satellite, Sputnik 1. Stung by a string of Soviet firsts in space exploration, in May 1961 President Kennedy committed the United States to achieving a human landing on the Moon by 1970: a bold goal to set at a time when America’s first astronaut had made only a 15 minute sub-orbital flight just 3 weeks before.

When Apollo 11’s Lunar Module Eagle, with its crew, mission commander Neil Armstrong and Lunar Module pilot Col. Edwin “Buzz” Aldrin, landed on the Moon, it effectively gave the United States the victory in the Space Race, as the Soviet Union had not been able to mount a successful lunar programme of its own. But the success of Apollo 11 was more than just a Cold War propaganda victory: when Armstrong stepped onto the lunar surface at 12.56pm Eastern Australian time and uttered his famous words “That’s one small step for (a) man; one giant leap for Mankind” he was fulfilling a centuries-old dream.

The desire to journey into the heavens is as old as humanity and the dream of travelling to the Moon has inspired poets and storytellers since Roman times. But it was not until the 20th Century that the technology to achieve spaceflight was developed and scientists and engineers looked forward to achieving this long-held goal. Apollo 11 therefore represented not just a Cold War political prize, it was also the accomplishment of an ancient Human aspiration: for the first time, people had left our home planet Earth and travelled to another world in the solar system.

Australia played an important part in all the Apollo missions, with NASA tracking stations at Carnarvon (WA) and Honeysuckle Creek and Tidbinbilla (ACT) providing vital communication links with the Apollo spacecraft. In particular, the Apollo 11 Moonwalk images broadcast to the world were received at Honeysuckle Creek
and the Parkes radio telescope.

Visitors to the museum’s Space exhibition can view a genuine lunar sample from the Apollo 16 mission, as well as a massive F-1 rocket motor (five of which were needed to launch the mighty Saturn V rocket that sent the Apollo astronauts on their way to the Moon).

To mark the 40th anniversary of Apollo 11, a selection of original contemporary space memorabilia from the museum’s collection is on display in the entry foyer until September.

Kerrie Dougherty
Curator of space technology