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What Do You Think This Is?


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Interesting set of replies.... I only knew I'd seen something that looked a lot like it... I was thinking it might have been on a beach someplace, so "coral" rings true to me.

But you all undoubtedly know the truth (thanks Malcolm) by now. It's one of Saturn's moons, called Hyperion. Featured here: http://apod.nasa.gov/apod/ap130630.html

Explanation: What lies at the bottom of Hyperion's strange craters? Nobody's sure. To help find out, the robot Cassini spacecraft now orbiting Saturn swooped past the sponge-textured moon in 2005 and

and took images of unprecedented detail. An image from the 2005 pass, shown above in false color, shows a remarkable world strewn with strange craters and a
. Theslight differences in color likely show differences in surface composition. At the bottom of most craters lies some type of unknown dark material. Inspection of the image shows bright features indicating that the dark material might be only tens of meters thick in some places. Hyperion is about 250 kilometers across,
, and has a density so low that it might house a vast system ofcaverns inside.
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