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1st satellite into space. russian satellite
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Alan B sheperd became the 1st U.S citezen in space
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1st man in space
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John glenn orbited the earth
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explored venuses atmosphere
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Apollo 11 laded on the moon and neil armstrong was on the moon
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sent photos of Jupiter first probe to encounter outer planet
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mapped surface of mars
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mapped venuses surface and returned data on the composition of venuses atmosphere