Search found 5 matches
- Sun Oct 08, 2017 10:14 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Dark Molecular Cloud Barnard 68 (2017 Oct 08)
- Replies: 10
- Views: 4612
Re: APOD: Dark Molecular Cloud Barnard 68 (2017 Oct 08)
Without having studied the topic in any detail, I would guess that a prominent theory of the formation of these types of clouds would refer to their formation in areas far from forces that would disperse them, that would break them up. If there is stellar wind blowing and photon pressure from many d...
- Sat Mar 07, 2015 7:27 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: NGC 602 in the Flying Lizard Nebula (2015 Mar 07)
- Replies: 22
- Views: 99448
Re: APOD: NGC 602 in the Flying Lizard Nebula (2015 Mar 07)
I wonder to what extent have the trajectories of satellite galaxies been mapped, so that the time since the most recent passage through the plane of the Milky Way can be compared to the age of the youngest stars in those galaxies. If it were possible to make maps accurate enough (or if some satellit...
- Sun May 12, 2013 5:54 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Clouds, Birds, Moon, Venus (2013 May 12)
- Replies: 20
- Views: 3363
APOD: Clouds, Birds, Moon, Venus (2013 May 12)
Yes, iajomac, it does say that an evening crescent was photographed last week. But last week the moon was a waning crescent, visible in the predawn sky. And a fatter crescent than we see here, too, even late in the week. Waning gibbous earlier in the week. Maybe we will see some edits soon.
- Wed May 08, 2013 1:43 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Earths Major Telescopes Investigate... (2013 May 08)
- Replies: 49
- Views: 11862
Re: APOD: Earths Major Telescopes Investigate... (2013 May 0
Rob, since we are not particularly familiar with natural phenomena at these energies, I would suggest that what is expected and what might actually happen may not match closely.
- Wed May 08, 2013 12:21 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Earths Major Telescopes Investigate... (2013 May 08)
- Replies: 49
- Views: 11862
APOD: Earths Major Telescopes Investigate... (2013 May 08)
If a miniature black hole were produced by a curious species involved in high-energy physics experiments, and that black hole ended up swallowing the planet that was home to such species, what kind of signature would such an implosion produce?