I spent years explaining space hardware, but the real drama lived in the...

https://super-wiki.win/index.php/How_Mission_Planners_Actually_Compare_Propulsion:_Stop_Looking_for_the_%22Game_Changer%22

I spent years explaining space hardware, but the real drama lived in the internal memos. Back in 1962, engineers fought over nuclear, chemical, and electric propulsion like it was a holy war