TIL that Saturn's sixth-largest moon Enceladus is mostly covered by fresh, clean ice, making it the most reflective body in the Solar System. It shoots out water vapor, and other solid material totaling about 200 kilograms per second. Most of these materials supplies the making of Saturn's E ring.

https://en.wikipedia.org/wiki/Enceladus
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1gx6gxy/til_that_saturns_sixthlargest_moon_enceladus_is/