How Apollo Left Earth (And Returned): Part 2

This is the long-delayed second post in my discussion of the departure and return orbits of the Apollo missions. If you haven’t read the first post, you can find it here—it’ll give some useful background to what follows. The diagram at the head of this post shows a plot of Apollo 11’s departure trajectory, superimposed on … Continue reading How Apollo Left Earth (And Returned): Part 2 →