Jupiter's Moon Ganimedes Hiding Underground Ocean, Say Scientists

March 16, 2015 6:42 AM

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Since the 1970s, scientists have speculated about a saltwater ocean on Jupiter’s moon—Ganymede, the largest moon in our solar system, and now NASA finally announced they have found evidence that this is so.

The new data comes from the Hubble Space Telescope, which has been studying how auroral lights dance around this moon. As Ganymede has its own magnetic field, it also has its own stunning auroras. Charged particles from the Sun are trapped and excited by the magnetosphere until they can even be seen...

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