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2015-03-12. Huge ocean confirmed underneath solar system’s largest moon.

posted Mar 14, 2015, 8:05 AM by Alan Gould
By Eric Hand, Science. For GSS A Changing Climate chapter 7. Excerpt: The solar system’s largest moon, Ganymede, in orbit around Jupiter, harbors an underground ocean containing more water than all the oceans on Earth. ...new observations by the Hubble Space Telescope, published online today in the Journal of Geophysical Research: Space Physics, remove any remaining doubt. Ganymede now joins Jupiter’s Europa and two moons of Saturn, Titan and Enceladus, as moons with subsurface oceans—and good places to look for life. ...The Hubble study suggests that the ocean can be no deeper than 330 kilometers below the surface....  http://news.sciencemag.org/space/2015/03/huge-ocean-confirmed-underneath-solar-system-s-largest-moon.