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Why are planet rings in the plane of rotation?

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benjam

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Nov 21, 2006, 4:58:50 PM11/21/06
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What exactly are the mechanics that cause floating debris around a
planet to congregate along the plane of rotation of the planet?

ie- Why can there be moons around Jupiter that have highly irregular
orbits, but the rings are in a nice plane right at (or very near) the
equator?

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