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The soviet satellite "Sputnik 1" is the first object sent into space and to successfully orbit the earth.
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The first US satellite to orbit the earth - Explorer 1 - is launched.
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NASA (National Aueronautics and Space Administration) is formed.
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Russian citizen , Yuri Gagarin, is the first human in soace. he orbits earth.
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Alan Shepard is the first United States citizen to go into space.
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John Glenn is the first US citizen to orbit the earth.
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Apollo 11 crew member Neil Armstrong is the first man to walk on the moon. His fellow Apollo astronaut crew member Edwin "Buzz" Aldrin is right behind him, becoming the second man to walk on the moon.
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The first American space shuttle is launched. this makes the use of re-usable space craft.
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The space shuttle Challenger explodes shortly after take-off.
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Human habitation in the International Space station begins.
