Long-term orbit stability of the Apollo 11 “Eagle” Lunar Module Ascent Stage

Discussed in these recent threads:

https://news.ycombinator.com/item?id=27865232 (105 points/36 comments/4 days ago)

https://news.ycombinator.com/item?id=27865611 (54 points/12 comments/4 days ago)

A relevant resource is a recent video from Scott Manley https://youtu.be/dBHbLV7xEhc