fromBig Think
22 hours ago400 years later, astronomers finally understand Saturn's rings
None of the rocky planets, asteroids, or known Kuiper belt objects have a system of rings. Jupiter, Uranus, and Neptune possess them, but they're all much fainter, sparser, smaller, and less massive than Saturn's. In addition, Saturn's rings are: significantly tilted with respect to the planet's axis of rotation, are made almost exclusively of water-ice, and are actively in the process of evaporating.
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