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The USSR launches Sputnik 1 into space.
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Explorer 1 was the first American satelite that was launched to reach orbit. It carried scientic eqipment that led to the discovery of the Van Allen radiation belt.
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Luna 1 was lucnhed by the USSR. It was the first man made object to orbit the Sun.
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Yuri Gagarin orbits the Earth once and becomes the first man in space.
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Soon after the Russians sent the first ever man in space, Alan B. Shepard became the first American in space.
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Cosmonaut Valentina Tereshkova becomes the first ever (Russian) woman to go into space.
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Alexei Leonov was the first (Russian) man to perform the firs t ever spacewalk. He spent 12 minutes outside of his Voskhod performing the first spacewalk.
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Luna 10 becomes the first satelite to orbit the moon.
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Soyuz 1 was a manned spacecraft holding Vladimir Komarov. It was the first of the Siyuz series. On its return back to Earth, technical problems caused a crash and the death of Vladimir. It was the first fatal space flight.
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Neil Armstrong and Buzz Aldrin become the first men to walk on the moon, while crewmate Michael Collins orbits around the moon alone.
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After Apollo 13 was launched, the sapce shuttle suffered an explosion SM oxygen tanks. Therefore, its mooon landing was aborted. But luckily the crew was able to return safely back to Earth.
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