this post was submitted on 02 Nov 2025
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Would it not be possible to leverage how cold it is that high up in the atmosphere?
That's the problem in the vacuum of space. It's a vacuum, so heat dissipation is slow because there is nowhere for the heat energy to transfer to.
Edit: the above relates to convection. Radiation still works on the non-sunward sides.
That's not really how that works. It might be cool in the shade but not in the sun. ISS varies from 250F to -250F based on sun vs shade. There is so little air that high up (where a satellite would orbit) There is no air for convection or conduction you can only radiate heat away. And you can't just park it in the shade for various reasons.