The Frozen Lava Flows of Mars

The Frozen Lava Flows of Mars

This might seem like some kind of psychedelic artwork—but you’re actually looking a hundreds of individual lava flows, frozen in time on the side of Olympus Mons on Mars.

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How Big Is the Tallest Mountain That Could Ever Exist on Earth?

We’ve got some pretty tall mountains here on Earth. Granted, even the best of ’em don’t hold a candle to what’s waiting on Mars, but they’re still impressive. Just look at the views Google got with its Street Mountain View shots. More »