Science Fair Project Encyclopedia
Icy moon
Icy moons are believed to be a common class of planetoids that have a surface mostly of ice, possibly with an ocean under the ice, and possibly including a rocky core of silicate or metallic rocks. The prototype of this class of object is Europa.
Icy moons warmed by tides may be the most common type of object to have liquid water, and thus the type of object most likely to have water-based life.
Also some icy moons exhibit cryovolcanism.
03-10-2013 05:06:04
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details