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Make a mask and pretend to be your favorite planet in our solar system!
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Astronomers may have found a planet without a sun!
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How Many Moons Does Each Planet Have?
We have one, but some planets have dozens.
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Launch a rocket from a spinning planet
Wind up that launch pad!
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Find definitions of space and Earth science terms
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We can use a planet’s gravitational pull like a scale!
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And how does it help us find new planets?
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PDFs of Space Place activities
Print-ready, downloadable PDFs of fun hands-on activities.
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The smallest planet in our solar system
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Glossary for "Sign Here!" words
Defines words in "Sign Here" game.
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What is an exoplanet? And how do we know they're out there?
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How Long is a Year on Other Planets?
You probably know that a year is 365 days here on Earth. But did you know that on Mercury you’d have a birthday every 88 days? Read this article to find out how long it takes all the planets in our solar system to make a trip around the Sun.
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