Photos Of The Galaxy's Largest Valley On Mars

It's the length of the entire United States.

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Complex Original

Image via Complex Original

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These photos of the Mariner Valleys on Mars show just how vast the canyons and volcanoes are there. The largest valley is the length of the U.S. from the Pacific to the Atlantic Ocean. The main canyon is so wide that if you stood on one side, you wouldn't be able to see the other. [Designyoutrust]

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