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Another Saturn Moon May Hide Subsurface Ocean

Cassini observations show that icy Dione is the latest small moon in the solar system possessing tantalizing clues of a liquid water ocean beneath its crust.

Published On 10/05/2016
10:52 PM EDT
Topography of Dione's mountain Janiculum Dorsa, as captured by the Cassini spacecraft. | Credit: NASA/JPL-Caltech/SSI/Brown