Origin of Saturn’s rings and inner moons by mass removal from a lost Titan-sized satellite

  title={Origin of Saturn’s rings and inner moons by mass removal from a lost Titan-sized satellite},
  author={Robin Canup},
  • R. Canup
  • Published 2010
  • Physics, Medicine
  • Nature
The origin of Saturn’s rings has not been adequately explained. The current rings are more than 90 to 95 per cent water ice, which implies that initially they were almost pure ice because they are continually polluted by rocky meteoroids. In contrast, a half-rock, half-ice mixture (similar to the composition of many of the satellites in the outer Solar System) would generally be expected. Previous ring origin theories invoke the collisional disruption of a small moon, or the tidal disruption of… Expand

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