Interestingly the biggest reactors (mostly 2kw and a few 5kw) were deployed by the Soviet Union. Presumably they just didn't care about the safety risks. The

Interestingly the biggest reactors (mostly 2kw and a few 5kw) were deployed by the Soviet Union. Presumably they just didn't care about the safety risks. The risks weren't purely theoretical either. They had one nuclear-powered satellite that re-entered over Canada. https://en.wikipedia.org/wiki/Kosmos_954 https://en.wikipedia.org/wiki/Kosmos_954