We often imagine spaceflight as a straight line, but history is actually a...

https://www.anobii.com/en/01a2c09396c3dc6dc5/profile/activity

We often imagine spaceflight as a straight line, but history is actually a series of heated arguments. In 1962, lead engineers stalled on the core engine choice: nuclear versus chemical versus electric. It wasn't just physics; it was ego and funding