breckenridgeback t1_jaexs5x wrote
Reply to comment by BaffleBlend in eli5: when the sun swallows mercury in 4 billion years, how is that going to affect earth? by grass-whore
...but it still won't have a magnetic field, so it won't be able to hold on to a thick atmosphere regardless.
Mars already isn't that cold. On a warm day near Mars' equator, you could walk around in a sweater quite comfortably provided you had pressurized oxygen to breathe.
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