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toodroot t1_j237ber wrote on December 29, 2022 at 9:02 AM

Reply to comment by TK-741 in What if we kept pursuing nuclear spacecraft propulsion? by rosTopicEchoChamber

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.