How do space stations and spacesuits cool themselves so well, if cooling via radiation is slow?
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It’s really not that slow.
Space is very cold (usually) and radiative cooling scales to the fourth power. Which means that if you double the temperature difference an object will cool 16 times faster.
Because of that cooling stuff in space is (very very roughly) akin to trying to cooling stuff in a giant refrigerator. As far as how quickly the background will try to suck away heat.
So sure, if something is producing a lot of heat that’s a problem. But then you just increase It’s surface area and you are fine again.
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