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the soviet satillite "sputnik 1" is the first object sent into space and to successfully orbit the earth.
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the first united states satillite to orbit the earth-explorer 1- is launched
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Nasa( National Areonomics and space administration) 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 sheapard is the first United states citezen 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 niel armstrong is the first man to walk on the moon. his fellow apollo astonaut crew member edwin "buzz" aldrin is right behind him becoming the second man to walkkk 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 space shuttle challenger explodes shortly after take off
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Human habitation in the international space station begins
