In 1962, engineers fought over whether nuclear, chemical, or electric rockets...

https://bravo-wiki.win/index.php/The_Mars_Illusion:_Why_We_Keep_Getting_Travel_Time_Wrong

In 1962, engineers fought over whether nuclear, chemical, or electric rockets should reach the Moon. I dug into archives to see why experts couldn't agree. Space flight is more about human stubbornness than math