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The first satellite Sputnik 1 is the first object sent into space and to successfully orbit the Earth
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The First US Satellite (Explorer 1) to Orbit the Earth is Launched
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NASA is Formed
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Yuri Gagrarin orbits the Earth as the first man in space
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Alan Shepard is the First American to go into space
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John Glenn is the first United States 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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First American Space Shuttle is Launched. This marks the use of the first "re-usable" space craft
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The Space Shuttle Challenger Explores Shortly After Take-Off
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Human habitation in the International Space Station begins.