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Period: to
Space Exploreation
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Gallileo
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jupiters moons discovered
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discovery of venus
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Galilao discovered saturns rings
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mars was discovered
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Publication of Principia
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discovery of uranus
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first exposition of rocket mecanics
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neptune discovered
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Exploration of Cosmic Space
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german rocket club founded
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Pluto, Discovered
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first sucessfull rocket launch V-2 Rocket
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sputnik launch
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first dog in space
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first american satalite launch
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first human in space
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the Hubble launch