Dark Terrain on Saturn's Iapetus

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Expand view Topic review: Dark Terrain on Saturn's Iapetus

by S. Bilderback » Wed Jan 04, 2006 3:07 pm

Most hydrocarbon ice darken do to radiation exposure, but new cratering exposes the lighter colored ice below. So it is either a geologically inactive moon or its not hydrocarbon ice.

by BMAONE23 » Wed Jan 04, 2006 3:05 pm

it resembles polar frosting

Dark Terrain on Saturn's Iapetus

by orin stepanek » Wed Jan 04, 2006 2:30 pm

Wow! It's really dark!

http://antwrp.gsfc.nasa.gov/apod/ap060103.html

Almost looks like it was painted. Do you suppose volcanic activity may have caused this; or could the moon be made of dark material?

Orin

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