Search found 2 matches
- Mon May 31, 2021 2:18 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Mimas: Small Moon with a Big Crater (2021 May 31)
- Replies: 13
- Views: 3190
Ice moom and sublimation
After reading the caption of today's picture of Mimas, I wondered: If it is mostly frozen water, why doesn't the ice sublimate? How can any ice moon exist in the vacuum of space? After all, the ice cubes in my refrigerator eventually sublimate completely.
- Mon Jun 03, 2019 2:36 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: A Live View from the ISS (2019 Jun 02)
- Replies: 8
- Views: 2688
Re: APOD: A Live View from the ISS (2019 Jun 02)
Why is it we cannot see any city lights while on the night side?