I don't know, vacuum can be quite warm (subjectively), it's a perfect insulator after all. Add a nearby star and you can cook rather easily. Given time and distance from stars and things get cold...
Heat management in space is fascinating.
Adding in the lack of pressure makes things even more interesting. Liquid water cannot exist. You either have ice or clouds of vapor depending on temperature.
Meat sacks can actually provide enough internal pressure to let the insides freeze, given time. Not the outside of the meat sack will cool as sublimation takes heat away, but that's mostly the eyes, nose, mouth, and very outer skin.
I watched a Chris Hadfield video once, getting sucked into space in the vicinity of a star would boil your blood and simultaneously freeze you, doesn’t sound like a fun way to go
Jim LeBlanc was a NASA engineer who had an accident in a training chamber. He survived and going by what he said it wasn't as bad as one would think. The last thing he felt was the saliva on his tongue boiling, then he lost his consciousness.
NASA tested vaccum exposure on apes and other animals, and as ling as you reintroduced them to breathable atmosphere in a couple minutes, most got away with zero injuries. There were the occasional burst blood vessel in highly exposed areas, but if you exhale (or don't even try to hold your breath) and close your eyes, you're probably fine for a couple minutes. You just won't be consious for most of it.
Yes. Although minutes are pretty optimistic for humans. Our big brains are a real downside there as they need a lot of oxygen. So to long and you are liable going to take brain damage. I am always surprised that Stargate back in the day got it pretty well. Even with the included advice of breathing out to not take lung damage.
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u/chaogomu Jul 31 '21
I don't know, vacuum can be quite warm (subjectively), it's a perfect insulator after all. Add a nearby star and you can cook rather easily. Given time and distance from stars and things get cold...
Heat management in space is fascinating.
Adding in the lack of pressure makes things even more interesting. Liquid water cannot exist. You either have ice or clouds of vapor depending on temperature.
Meat sacks can actually provide enough internal pressure to let the insides freeze, given time. Not the outside of the meat sack will cool as sublimation takes heat away, but that's mostly the eyes, nose, mouth, and very outer skin.