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[–] 1 point 2 months ago (3 children)

losing more atmosphere to convection? i don't think that's how that works

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  • [–] 1 point 2 months ago (2 children)

    I vaguely remember some slips away over time, and is generally ~replaced by space bullshit that burns off in the atmosphere. We are on a rock swishing around in mostly-vacuum.

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  • [–] 1 point 2 months ago (1 child)

    i looked it up properly and according to https://faculty.washington.edu/dcatling/Catling2009_SciAm.pdf we basically only lose hydrogen and helium, and we do so very very slowly (3kg/s for hydrogen, 50g/s for helium).

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