In 1962, NASA engineers spent more time debating propulsion methods than...

https://holdenlvxt779.theburnward.com/is-nuclear-propulsion-banned-or-just-politically-messy

In 1962, NASA engineers spent more time debating propulsion methods than actually building rockets. You’d think the choice between nuclear thermal and chemical fuel would be a simple math problem, but it turned into a career-defining grudge match