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Find definitions of space and Earth science terms
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How do gravitational waves give us a new way to learn about the universe?
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A tsunami is a large wave caused by movements in Earth''s outer layer, or crust. Learn more about these big waves and how NASA monitors them.
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Glossary for "Sign Here!" words
Defines words in "Sign Here" game.
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Make your own colorful aurora!
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Hear tiny sounds with a Super Sound Cone!
Hear tiny sounds you never noticed before!
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Learn more about this useful focused light source!
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Relay: A Laser-Based Space Communications Game
Learn about laser-based space communications in this game!