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The problem here isn't really about whether or not a moon could "skim" a ring, but whether or not rings could form around Earth. There are three ways planetary rings can form. All three involve ma...
Answer
#1: Attribution notice removed
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System
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2020-06-01T14:13:41Z (over 4 years ago)
Source: https://worldbuilding.stackexchange.com/a/5048 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/