Sunday, June 30, 2013

Saturn's Sponge

Saturn's moon Hyperion.
Image Cassini APOD
Another Space Theology bookmark Spectacular Cassini image of Hyperion APOD.

Wildly rotating and only 250 kilometers in diameter Hyperion may be full of cavities, a true space sponge!
An image from the 2005 pass, shown above in false color, shows a remarkable world strewn with strange craters and a generally odd surface... and has a density so low that it might house a vast system of caverns inside.
from text in APOD

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