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A comment on What made Earth a giant snowball 700M years ago? Scientists have an answer. Parent comment

Re:What made Earth a giant snowball 700M years ago? Scientis... by Maxion on Wednesday February 14, 2024 @09:07AM (#39369895)
It doesn't have to be very thick at all. Harder part would be to keep it in place, as it would act as a sail.
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