![Joan Aldrin speaks on the phone to her husband, Buzz, while he gazes out from the Apollo 11 Mobile Quarantine Facility aboard the U.S.S.](https://www.bygonely.com/wp-content/uploads/2020/07/Apollo_families_1969_9.jpg)
Hornet in July 1969. The astronauts spent 21 days in quarantine as a precautionary measure.
This procedure, which scientists ultimately deemed unnecessary when the moon proved to be barren of life, was dropped after the Apollo 14 mission two years later.