We imagine the space race as a smooth path to the moon, but 1962 memos reveal a...

https://dlf-ne.org/is-nuclear-propulsion-worth-it-just-to-shave-time-to-mars/

We imagine the space race as a smooth path to the moon, but 1962 memos reveal a much messier reality. Engineers were stuck in a stalemate, debating whether to bet on nuclear, chemical, or electric engines