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New maps reveal colorful patterns on the surfaces of Saturn's five innermost icy moons.
Some of the patterns have been seen before, but others took scientists by surprise, suggesting dynamic interactions between the moons and other particles orbiting around Saturn.
This reddening is strongest at the centers of the trailing face (like the center of a bulls-eye). The leading faces of the moons also appear to be redder in their centers, though the redness is weaker than for the trailing hemisphere.
Seeing this pattern on both hemispheres is difficult to explain because most processes that would color the surface in this way would only affect one hemisphere or the other.