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First telescopic observation of the night sky by Galileo
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First liquid fueled rocket launched by Robert H. Goddard
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First V-2 rocket launch
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First dogs in space
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First artificial satellite; first signals from space
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First human in space
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First human piloted space flight
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First Human on the moon
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First space station
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First untethered space walk
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Challenger explosion
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Cassini-Huygens Mission launched
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Kepler Mission launched
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Completion of Cassini-Huygens mission
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First consumer car in space, a cherry-red Tesla