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I wrote an answer on Physics Stack Exchange that discussed this a bit. I'll present a shorter and more focused version here. There are two main processes by which a planet can lose atmosphere: Jea...
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#1: Attribution notice removed
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System
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2020-06-01T14:13:52Z (over 4 years ago)
Source: https://worldbuilding.stackexchange.com/a/79337 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/