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Watch This Dark Volcanic Ash Creep Across the Red Planet

Mars is well known as a static, frozen desert. We tend to think of the only thing changing on the surface of the Red Planet is due to the occasional dust storm. But if you look closely - and are willing to wait decades - you’ll see the planet is very much alive - at least in the environmental sense. The European Space Agency just released some spectacular new images from the High Resolution Stereo Camera (HRSC) on its Mars Express Orbiter, one of which shows a surprisingly “fast” geological change happening in Utopia Planitia. A dark, ominous-looking blanket of volcanic ash is actively creeping across the bright red sands - and it's moving (relatively) fast.

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