Callisto: A chain of impact craters 9.19
A chain of twenty-five 10 km diameter craters on Callisto believed to result from the serial impacts of fragments of a tidally-disrupted comet. Bottom: Voyager image showing the whole chain in context. Top: Galileo view, showing an oblique close-up view of parts of three overlapping craters in this chain.
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Image Credit: NASA, David A. Rothery (text).