this post was submitted on 10 Sep 2024
39 points (93.3% liked)
Space
8697 readers
5 users here now
Share & discuss informative content on: Astrophysics, Cosmology, Space Exploration, Planetary Science and Astrobiology.
Rules
- Be respectful and inclusive.
- No harassment, hate speech, or trolling.
- Engage in constructive discussions.
- Share relevant content.
- Follow guidelines and moderators' instructions.
- Use appropriate language and tone.
- Report violations.
- Foster a continuous learning environment.
Picture of the Day
The Busy Center of the Lagoon Nebula
Related Communities
๐ญ Science
- [email protected]
- [email protected]
- [email protected]
- [email protected]
- [email protected]
- [email protected]
- [email protected]
- [email protected]
- [email protected]
๐ Engineering
๐ Art and Photography
Other Cool Links
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Matter not sunlit in space really is cold (and sunlit matter is baking hot, btw). It's just there is so little matter in space (vacuum and all) that getting rid of heat via conduction is virtually impossible, meaning it's insulated. So technically space is cold, also hot, and also damn well insulated.
Water not exposed to sunlight could get as low as - 260C (close to absolute zero) by radiating away all it's heat... eventually. Meanwhile water exposed to our sun in Earth orbit would be at around boiling temps, like 100-140C. Just check the Moon surface temperature readings.