The contrasts on Ganymede up close.

in #science • 5 years ago

The older more stable terrain with its many more craters and darker appearance.

The lighter smoother areas with much fewer and smaller craters where the surface has been rejuvenated or newly extruded due to expansion of the moon and tectonics.

Ganymede terrain.jpg
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#astronomy #worlds #moons
5 years ago in #science by
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