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What are they and what will become of them?
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Learn more about these exploding stars!
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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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How Does Our Sun Compare With Other Stars?
The Sun is actually a pretty average star!
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A nebula is a cloud of dust and gas in space.
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Glossary for "Sign Here!" words
Defines words in "Sign Here" game.
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The light of daytime comes from our closest star: the Sun. Learn more about it!
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The Hubble Space Telescope is a large space telescope orbiting Earth.
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Find definitions of space and Earth science terms
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How Many Solar Systems Are in Our Galaxy?
Astronomers have discovered 2,500 so far, but there are likely to be many more!
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Find out why stars aren't all the same color.
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and dark energy, too!
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