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TK-741 t1_j22xbpf wrote

This seems like something that would require a few initial rocket stages based on conventional technologies for getting free of Earth’s gravity. This is something I would expect to only be used when well clear of Earth/the Moon


toodroot t1_j237ber wrote

The Russians flew a bunch of nuclear reactors in low earth orbit, for radar satellites. There were multiple accidents, one of which smeared radioactive debris all over northern Canada. One hopes someone has learned something.