Giant Jovian Moon Might Have an Ocean and Ice ‘Club Sandwich’
Ganymede is Jupiter’s largest moon; in fact it’s the solar system’s biggest moon. Now members of the Icy Worlds team at NASA’s Jet Propulsion Laboratory (JPL) think that the giant moon, which is even larger than the planet Mercury, may have several layers of ice and liquid oceans piled atop each other, much like a […]