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The first United States satelite to orbit the Earth- Explorer 1- is launched
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NASA (National Aeronautics and Space Adiministration) is formed.
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Russian citizen, Yuri Gagarin, is the first human in space. (he orbits the 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 United States citizen to orbit 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 behindhim, becoming the secong man to walk on the moon.
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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 American space shuttle is launched. This marks the use of the first "re-useable" space craft.
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The space shuttle Challenger explodes shortly after take-off.
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Human Habitaion in the International Space Station begin.
