Ganymede: 600 km wide Galileo view 9.17
600 km wide Galileo view of part of Ganymede, showing belts of pale terrain cutting dark terrain (lower left) and several generations of cross-cutting pale terain (notably near the top). There are plenty of young, crisp-looking impact craters on both terrain types, and the dark terrain also has large numbers of more subdued-looking older craters.
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Image Credit: NASA, David Rothery (text)