Tuesday, October 21, 2014

Still Life of Wobble

Today's Astronomy Picture of the Day is brought to us courtesy of the venerable (and still working, long may it do so!) Cassini orbiter around Saturn. Pictured here is Saturn's icy moon Mimas, almost like the Death Star with Herschel Crater dominating the landscape. Mimas has a bit of a wobble, leading to the possibility of a liquid center "ocean".

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