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Space Definitions
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Astronaut
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Mars
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Mercury
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Saturn
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Milky Way
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Constellation
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Uranus
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Comet
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Telescope
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Gas Giants
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Star
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the hottest planet in our Solar System
Venus
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Solar System
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Sun
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Spacecraft
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Orbit
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Earth
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Astronomy
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Universe
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Scientist
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Jupiter
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Neptune
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Light years
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