News  ·   March 12, 2015

The geology of Ganymede, Jupiter's largest moon

- This animation, based on images taken by NASA's Galileo orbiter, shows what Jupiter's moon, Ganymede, looks like, with each color indicating a different type of terrain. "Brown regions are those that are heavily cratered and much older than the light shaded regions that are smoother with few craters. These lighter shaded regions are believed to be formed by flooding of the surface with water coming from faults or even cryo-volcanos that have taken place over billions of years. Perhaps even tectonic processes are at work with some crustal ice sheets being forced downward by the emergence of newer icy material." ()

- This animation, based on images taken by NASA's Galileo orbiter, shows what Jupiter's moon, Ganymede, looks like, with each color indicating a different type of terrain. "Brown regions are those that are heavily cratered and much older than the light shaded regions that are smoother with few craters. These lighter shaded regions are believed to be formed by flooding of the surface with water coming from faults or even cryo-volcanos that have taken place over billions of years. Perhaps even tectonic processes are at work with some crustal ice sheets being forced downward by the emergence of newer icy material." ()

The geology of Ganymede, Jupiter's largest moon (0:38)

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