NASA’s Hubble Observations Suggest Underground Ocean on Jupiter's Largest Moon via NASA http://t.co/zuJHMvnftR

NASA’s Hubble Observations Suggest Underground Ocean on Jupiter's Largest Moon via NASA http://t.co/zuJHMvnftR

— John Prieto (@prietoj) March 12, 2015

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March 12, 2015 at 10:49AM

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