Contact: Diana Lutz
Washington University in St. Louis
Caption: When the rimwall of Iapetusís Malun crater broke off and plunged more than five miles to the crater floor, it surged an astonishing 22 miles out from the base of the wall before finally coming to rest.
Credit: NASA/JPL/Space Science Institute
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Related news release: Giant ice avalanches on Iapetus provide clue to extreme slippage elsewhere in the solar system