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Cassini-Huygens
Ice avalanches on Rhea
07/30/12

 

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 it’s 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 cold ice never becomes slippery. Credit: NASA/JPL/SSI/LPI. Color-coded elevation: Paul Schenk/LPI



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