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A comment on Ask HN: How bad Earth would have to be for terraforming Mars to make sense?. Parent comment

Re:Ask HN: How bad Earth would have to be for terraforming M... by Zambyte on Tuesday October 13, 2026 @01:27PM (#50075401)
> gravity there is too weak to carry a fetus to term

This seems way down in the list of reasons Mars is hard. Possibly not on the list at all. Interested in your source on such a confident claim.

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Re:Ask HN: How bad Earth would have to be for terraforming M... by subject4056 on Tuesday October 13, 2026 @01:39PM (#50075598)
You know I took the wrong conclusions from frog/rat developmental studies in space. As far as I can tell low gravity isn't known to be a killer, just that the whole process hasn't been studied (no mammal recorded to give birth in space).

As to whether or not that makes Mars hard, I think it doesn't matter how well you can control the climate if you can't have a second generation of people to live there.

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