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by mandevil 906 days ago
I know at least at one point during the Cassini mission- though I confess I have not followed this in more than a decade it so I don't know if further study has refuted this idea- a popular theory for the rings was that basically Saturn was constantly forming and destroying moons into rings and back: a moon would get torn up and turned into a ring, then slowly clump back together over time and reform as a moon, then the cycle would continue.