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Nasa Research Reveals Europa's Mystery Dark Material Could Be Sea Salt

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The puzzling, fascinating surface of Jupiter's icy moon Europa looms large in this reprocessed color view, made from images taken by NASA's Galileo spacecraft in the late 1990s.

Credit: NASA/JPL-Caltech/SETI Institute

NASA laboratory experiments suggest the dark material coating some geological features of Jupiter's moon Europa is likely sea salt from a subsurface ocean, discolored by exposure to radiation.

From Jet Propulsion Laboratory/NASA
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