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Contact: Diana Lutz
dlutz@wustl.edu
314-935-5272
Washington University in St. Louis

Avalanche on Saturn's Icy Moon Rhea

Caption: Ice avalanches on Rhea behave differently than those on Iapetus. On Rhea, ice lands in a debris pile beneath the crater wall instead of scooting miles into the crater. Rhea is roughly the same size as Iapetus and has an icy surface, but itís not out-of-round. Its topography is less rugged and its craters are not as deep. So, on this icy moon, icefalls do not gather speed, and the ice never becomes slippery

Credit: NASA/JPL/SSI/LPI. Color-coded elevation: Paul Schenk/LPI

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Related news release: Giant ice avalanches on Iapetus provide clue to extreme slippage elsewhere in the solar system


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