News of the WeekPlanetary Science

How Saturn's Icy Moons Get a (Geologic) Life

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Science  06 Jan 2006:
Vol. 311, Issue 5757, pp. 29
DOI: 10.1126/science.311.5757.29

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SAN FRANCISCO, CALIFORNIA-- Why is there geology on Saturn's icy satellites? A group of Cassini team members puzzling over the odd shape of Iapetus has hit on a possible explanation. Perhaps the moons formed early and grabbed just enough heat-generating radioactivity from the nascent solar system. (Read more.)