People think the moon race was a straight line, but the 1962 memos tell a...

https://fun-wiki.win/index.php/Is_Nuclear_Propulsion_Really_Faster_to_Mars_than_Chemical_Rockets%3F

People think the moon race was a straight line, but the 1962 memos tell a messier story. Engineers debated nuclear vs. chemical vs. electric propulsion for the transit modules