Back in 1962, NASA’s path to the moon wasn't a given—it was a vicious argument....

https://web-wiki.win/index.php/Why_is_Electric_Propulsion_So_Slow_If_It_Is_Efficient%3F

Back in 1962, NASA’s path to the moon wasn't a given—it was a vicious argument. While 18 Nobel laureates obsessed over fuel types, John Houbolt fought to prove that docking was safer than direct ascent