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15 photos that prove Earth is far stranger than any science fiction.

Did you know that when scientists wanted to test the Mars rover, they went to Chile? It turns out there are a lot of places on Earth that are totally out of this world.

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Earth Day

1. The Atacama Desert in South America is so dry, NASA has used it to test Mars rovers.

It even has a reddish surface. Image from ESO/Wikimedia Commons.

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