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If the sun expands then the distance between the sun and mars would become shorter. Thus more heat would reach Mars and perhaps the polar icecaps would melt. Could this lead to a thicker atmosphere and more agreeable temperatures for life to exist there?

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  • $\begingroup$ Still no magnetosphere, of course. I'm not entirely certain that this is the best SE site for this question, but I don't have any suggestions of better places to go. $\endgroup$ – Starfish Prime Feb 28 at 14:09
  • $\begingroup$ What kind of life? $\endgroup$ – Organic Marble Feb 28 at 14:21
  • $\begingroup$ microbic life atleast $\endgroup$ – Maurice Feb 28 at 14:44
  • $\begingroup$ Hi @Maurice I think this is best on Astronomy SE. $\endgroup$ – Puffin Feb 28 at 19:07
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    $\begingroup$ @Maurice Compare these two lists space.stackexchange.com/help/on-topic vs astronomy.stackexchange.com/help/on-topic . You might be tempted to think that the 6th bullet on the Space SE list is ok, but its much more helpful for me to say that you won't find that kind of thing discussed here. $\endgroup$ – Puffin Feb 28 at 22:59

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