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Each factor All approximately house provides interesting articles and lines on all elements of area and house shuttle with extraordinary images and full-colour illustrations that deliver the fantastic universe round us to existence.

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How did Russian space scientists achieve so much – and why did the hammer-and-sickle flag never fly on the Moon? The dawn of the Space Age came as a shock to almost everyone. US plans to launch a satellite during the International Geophysical Year of 1957 to 1958 had been well publicised, but the Soviet space programme was widely assumed to trail far behind. So when Russian news agency TASS announced on 4 October 1957 that the beach ball-sized Sputnik 1 had successfully reached orbit, it shook longheld preconceptions of American technological superiority.

Age below 30 Cosmonauts needed to combine their flight experience with relative youth – no one could anticipate the physical effects of spaceflight. 2ft) and weights of up to 95kg (209lb). Good health Prior to selection, candidates were screened for chronic health problems. Even minor illness could threaten a pilot with substitution. Sponsorship The Soyuz spacecraft often carries US and European astronauts as well as Russians, as part of partnership agreements with other space agencies. A few wealthy passengers have even paid for a ticket into space.

1955 1950s October 1957 Soviet scientists use dogs as test subjects during rocket development – most return to Earth safely, using bizarre devices such as this ‘ejector seat’. Laika, the passenger on Sputnik 2, is the only one to be launched with no hope of return, as a re-entry system cannot be developed in time to meet Khrushchev’s demands for another quick spectacular. Sputnik 1 is launched using a three-stage rocket based on the Soviet R-7 Semyorka ballistic missile. It enters a highly elliptical orbit ranging from 215 to 939 kilometres (134 to 583 miles) above Earth’s surface, sending back a signal that is picked up by radio operators around the world.

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All About Space, Issue 43


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