You can radiate it away, but it would be really hard compared to just dumping it to atmosphere / water bodies. Especially as computers need quite low temperatur

You can radiate it away, but it would be really hard compared to just dumping it to atmosphere / water bodies. Especially as computers need quite low temperatures. Here is some more analysis on the problem of radiating heat away in space: https://toughsf.blogspot.com/2017/07/all-radiators.html https://toughsf.blogspot.com/2017/07/all-radiators.html