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Europa in Color

Europa, close in size to our Moon, is thought to have an ice surface 100 km (62 mi) thick, which overlies a silicate surface. The complex array of streaks indicates that the crust has been fractured. The lack of mountains or craters on Europa's bright limb is consistent with an ice surface. In contrast to its icy neighbors, Ganymede and Callisto, Europa has few impact craters. One possible candidate is the small feature near the center of this image with radiating rays and a bright circular interior. The relative absence of features and low topography suggests the crust is young.

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