Back in 1962, engineers argued over using nuclear, chemical, or electric...

https://www.bookmark-belt.win/in-1962-nasa-engineers-hit-a-wall-should-they-bet-the-moon-landing-on

Back in 1962, engineers argued over using nuclear, chemical, or electric propulsion. It wasn't just theory; it defined the limits of our reach. By reading their old memos, we see how these debates shaped today’s hardware