this post was submitted on 05 Nov 2026
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Vacuum does not vent heat.
This has been a PSA.
my Dyson gets pretty warm.
Begrudging upvote
Still kinda blows my mind that a ship could accelerate to 1c and still not be able to use cooling fins, aircraft on earth use it as part of the design process
no worries about the temperature if the ship collides with a spec of spacedust :)
No but hot things will just radiate it away, regardless of vacuum.
Yes, but the infrared radiators for a single megawatt are apx the size of 4 tennis courts. Until there's a space elevator, that's a tremendous amount of resources to get into orbit.
Yea, because the only resources in the entire universe are only on our planet. There's absolutely none out there where there's little to no gravity well to fight against right?
Sure, but we're not doing anything to mine or manufacture in space.
And we can't, until we do.
True enough.
I eagerly await OP's space mining operations, which Elon has promised to start doing for a decade but simply hasn't because he just didn't wanna.
He didn't mention the timeframe, he just said until we do; so it could be a few decades, centuries, or even millennia before space mining is a reality.
Apparently there are a lot of concerns, of which, one is venting heat. Also the change of heat as a satellite dips in and out of sunlight.
I didn't think about radiation, which I should have since it's a not-small problem for human astronauts.
Heavy CMEs are going to be the AI equivalent of Purple Haze LSD.