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Space is (largely) a vacuum and you can't lose heat by conduction, sure.
But you can lose heat by radiation. Pretty fast, in fact, it's why bodies like the Moon can go from 100K to 390K depending on how much radiation they're receiving from the sun. The coldest temperature ever recorded by a space craft is in a particularly dark (i.e not receiving any radiation from the sun) hole in the moon.
My point is - if characters stay in space for an extended period of time, they should be granted resistance to it because of the fact that heat transfer via radiation would always be happening.
I make this Q&A because IIRC DDM and DT made a change at one point so that this is not the case.
But you can lose heat by radiation. Pretty fast, in fact, it's why bodies like the Moon can go from 100K to 390K depending on how much radiation they're receiving from the sun. The coldest temperature ever recorded by a space craft is in a particularly dark (i.e not receiving any radiation from the sun) hole in the moon.
My point is - if characters stay in space for an extended period of time, they should be granted resistance to it because of the fact that heat transfer via radiation would always be happening.
I make this Q&A because IIRC DDM and DT made a change at one point so that this is not the case.
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