NASA’s Hubble Observations Suggest Underground Ocean on Jupiter's Largest Moon via #NASA http://j.mp/1HKNMjo

NASA’s Hubble Observations Suggest Underground Ocean on Jupiter's Largest Moon via #NASA http://j.mp/1HKNMjo:

via Twitter http://j.mp/17L5fpo

http://j.mp/OLW8el

from my Tumblr http://j.mp/1L2mnyF

March 12, 2015 at 04:59PM