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Pluto is now categorized as a dwarf planet.
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The icy bits past Neptune’s orbit
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How Many Moons Does Each Planet Have?
We have one, but some planets have dozens.
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Is There Ice on Other Planets?
Yes, there is ice beyond Earth! In fact, ice can be found on several planets and moons in our solar system.
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Find definitions of space and Earth science terms
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Color Your Universe: Find the Hidden Objects
Can you find all the NASA and space-themed hidden objects?
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Share these with your friends and family!
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Where Does the Solar System End?
The Oort Cloud!
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It all depends on what the spacecraft will do! Read on to learn more.
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Find out what other groups also deal with space.
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Gallery of NASA Solar System Images
Glorious planets and moons to view or print.
pluto
