Saturn boasts a pretty impressive 62 moons, with one of them, Iapetus, sticking out more than the others. Iapetus is unique in that it has a distinct 2-tone coloration where one side is much, much darker than the other (turns out it’s because it is just outside of Saturn’s rings and gets hit in the same spots with debris).

This is special because it’s the only moon in our solar system that looks like it.