this post was submitted on 11 Nov 2024
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I didn't realize this detail about them, and I'm old enough to have read about them like crazy at launch time.
Good info, I'd wondered how they were powered, but never enough to go look it up (I probably knew in 1978, but that was a few years ago).
There are actually tons of nuclear power systems like this in space:
https://en.wikipedia.org/wiki/List_of_nuclear_power_systems_in_space