“In space, cooling off is actually the easier part. Because there’s no air to conduct or convect heat, the main way things lose heat is by radiating it away as infrared radiation. If something’s generating heat, it can radiate that out into the vast cold of space relatively efficiently.

What’s harder is retaining warmth. Objects that aren’t actively heated will radiate their heat away and become very cold. So for spacecraft, keeping instruments or people warm is often the bigger challenge.” GPT responding to my promp