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The planet with living things
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Building a 3-D Map of Earth from Space!
And in only 10 days!
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View large images or print them.
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The answer may surprise you.
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A satellite is anything that orbits a planet or a star.
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Lunar Eclipses and Solar Eclipses
What’s the difference?
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Why Does the Moon Have Craters?
It's not because the Moon gets hit by meteors more often...
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How Is the Sun Completely Blocked in an Eclipse?
It all has to do with the distance between Earth and the sun and Earth and the moon.
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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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Learn more about tremors on Earth—and other planets too!
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Could they have brought the water to our planet?
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Make a Fan with Earth's Layers
Cool yourself with Earth’s hot interior
movement
