Today I learned on Nostr: TIL the density of Phobos, the larger and closer moon of Mars, suggests 25-35% of its ...

TIL the density of Phobos, the larger and closer moon of Mars, suggests 25-35% of its volume is empty space

https://en.wikipedia.org/wiki/Phobos_(moon)
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1iyoqce/til_the_density_of_phobos_the_larger_and_closer/