Back in 1962, experts fought over how to reach the moon. Memos reveal a messy...

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

Back in 1962, experts fought over how to reach the moon. Memos reveal a messy battle over nuclear versus chemical propulsion. While leaving Earth is easy, getting the team to agree on the engine is the hard part