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First Liquid Rocket Launch
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First Suborbital Flight
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First Live Animal in Space
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NASA is Born
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First Man in Space
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First American in Space
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First U.S. space Tragedy
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First Lunar Rover Mission
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First U.S. Space Station
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Hubble Space Telescope is Launched
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Mars Pathfinder Lands on Mars
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First Artificial Satellite
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First Landing on an asteroid
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First Impact With a Comet
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First skydive jump to break the sound barrier