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Saturn's rings
Saturn's rings. Artwork of the rings of Saturn, as seen from Saturn's upper cloud layers. The most visible rings extend outwards from Saturn for around 120,000 kilometres. The rings, only about one kilometre thick, consist of millions of rock and ice chunks. The Cassini division in the rings is the largest gap seen here. The rings are thought to have formed from the disintegration of a moon that was too close to Saturn or was hit by a comet or asteroid. Saturn, the sixth planet from the Sun, is mostly hydrogen and helium. Its clouds are coloured by trace chemicals like methane.
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