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the first satellite to go into space
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the first satellite lauched by the US
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explorer 2 failed did not make it into space
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sputnik 3 obited the sun the first time
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Yuri Gagarin orbits the Earth once and becomes the first man in space.
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ohn F Kendy became the 35th presedent for the US
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Neil Armstrong and Edwin "Buzz" Aldrin become the first men on the moon men to walk on the Moon while crewmate Michael Collins orbits around the Moon alone.