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Do Constellations Ever Break Apart or Change?
If you waited long enough, the patterns of stars you would see in the sky would change completely.
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Learn more about what these groups of stars can (and can’t) tell us about our place in the universe.
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What causes them?
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Make one for this month and find your favorite constellation.
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We all use it, but how does it work, anyway?
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Curiosity is the key!
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Dr. Marc Rayman Answers Questions
Dr. Marc Rayman answers questions about many things, like Earth, the solar system, space, space technology and the sun.
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Find definitions of space and Earth science terms
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Dr. Marc answers questions about space
Learn about time travel, dark matter, and black holes!