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How long does this process take? We don't know. As I discussed here1, Saturn's rings could have formed billions of years ago or only a few hundred million years ago. Wikipedia and NASA each ex...
Answer
#1: Attribution notice removed
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System
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2020-06-01T14:13:43Z (over 4 years ago)
Source: https://worldbuilding.stackexchange.com/a/10507 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/