Mars orbiter captures Red Planet scar longer than Grand Canyon (image)

New images published by the European Space Agency have captured a 600-kilometer-long (373-mile-long) serpentine scar on the surface of Mars in greater detail than ever before. The Red Planet is covered in scratches and scars, and this one, called Aganippe Fossa, is another of these steep-sided, trench-like grooves — more specifically, though, Aganippe Fossa is what’s called a “graben.”

“We still don’t know how and when Aganippe Fossa formed, but it seems likely that it was created by magma rising beneath the colossal mass of the Tharsis volcanoes, stretching and tearing the Martian crust,” ESA officials wrote in a recent press release.

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