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The Soviet satellite "Sputnik 1" is the irst object sent into space and to successfully orbit the earth .
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The United States satellite to orbit the earth-explorer 1- is launched
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NASA (National Aeronautics and Space Administration) is formed
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Russian citizen, Yuri Gagarin, is the first human in space
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Alan Shepard is the first United Staes citizen to go into space
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John Glenn is the first United 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" Aldrinis right behind him becoming the second man to walk on the moon.
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The first American space shuttle is launched. This marks the use of the first "re-usable' space craft.
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The shuttle Challenger explodes shortly after take off.
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Human habitation in the International Space Station begins