Immediately after landing on the moon, the Apollo 11 crew was supposed to sleep for 5 hours. They didn’t, because they figured they wouldn’t be able to.
While in the USSR, Neil Armstrong collected a handful of soil from outside a Ukrainian man’s house in Siberia to acknowledge that man’s contribution to Apollo-11 Moon Mission. The gravitational trajectory adopted by Apollo-11 program to reach the Moon is named after that man – ‘The Kondratyuk Rout’.
Moments after Neil Armstrong took his first steps on the moon, he dropped a bag of trash on the surface of the moon and kicked it underneath the lunar module.
Preventing an abort of the Apollo 11 mission has been attributed to the work of Margaret Hamilton, the lead flight software designer for Project Apollo. She was 31 when the lunar module landed on the moon, running her code, and is credited for coining the term “software engineering.”
Apollo 11 Astronauts couldn’t get life insurance prior to their launch so they gave themselves their own “life insurance policy made of autographs” that could be sold by their families if they did not return.
The nylon American flag planted on the Moon during Apollo 11 cost $5.50, was knocked over by exhaust from the Lunar Module’s ascent, and is likely disintegrated by four decades of heat, UV rays and radiation.
Apollo 11 astronauts had to declare moon rocks through customs upon return to Earth.