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This was the first satelite in space,launched by the Soviet Union
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Soviet Union launches first animal in space,this was important because Laika the dog showed us that if a animal could go in space so could a human
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Explorer 1 went into orbit
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Yuri Gagarin was the first human in space launched by the Soviet Union
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Alan B. Shepard first american in space
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Valentina Tereshkova was the first woman in space
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John Glenn was the first man to orbit earth
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John Glenn orbits earth 3 times
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Neil Armstrong and Buzz Aldrin First on the moon
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Soviets satelite crashes,after they never made another attempt to go to the moon