12 epic sites to visit if you were a tourist on Mars, where canyons are deeper than the Grand Canyon
Science Insider
2020-12-10
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Mars contains some of the greatest attractions in the solar system. Here's stunning footage of those attractions like Olympus Mons, the tallest volcano which is three times as tall as Mount Everest. And Valles Marines, a canyon as long as the entire contiguous United States.
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