Search found 14 matches
- Thu Oct 20, 2011 2:03 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: A Jet from Galaxy M87 (2011 Aug 28)
- Replies: 18
- Views: 3415
Re: APOD: A Jet from Galaxy M87 (2011 Aug 28)
Apart from the jet, I notice that the light from M87 is granulated. The granules are slightly smaller than the individual globular clusters are. Is the granular appearance due to star clusters in M87? That seems strange to me, and indeed, I should think that it would be a great discovery to find th...
- Thu Oct 13, 2011 3:54 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Global Warming Predictions (2009 April 21)
- Replies: 621
- Views: 67952
Re: 2009 April 21 - global warming
snip... Paul Keim, an expert on infectious bacteria at Northern Arizona University, said that work by Dr. Achtman and Dr. Krause had shown that the Black Death “ was really a series of epidemics coming out of China and sweeping across the susceptible ecological situation ” created by the culture of...
- Sat Oct 08, 2011 1:35 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Kepler 16b: A Planet with Two Suns (2011 Sep 20)
- Replies: 21
- Views: 9838
Re: APOD: Kepler 16b: A Planet with Two Suns (2011 Sep 20)
Sorry, but Kepler 16b is pretty dull for us very curious non-astronomers. Why not rename it "Tatooine"? You could try suggesting it to the IAU (International Astronomical Union), the governing body for naming celestial objects? They might adopt it, unless it is copyrighted by George Lucas...
- Mon Oct 03, 2011 3:45 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Dry Ice Pits on Mars (2011 Sep 26)
- Replies: 60
- Views: 6804
Re: APOD: Dry Ice Pits on Mars (2011 Sep 26)
I have to agree with you about the Nuclear Power and clean energy. The only real problem with Nuclear power is how the spent fuel rods are stored and cooled. Currently they are placed in spent fuel ponds that are kept cool by continually pumping water through them that is pumped by power produced o...
- Tue Nov 23, 2010 2:18 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: A Massive Star in NGC 6357 (2010 Nov 21)
- Replies: 29
- Views: 12936
Re: APOD: A Massive Star in NGC 6357 (2010 Nov 21)
Similarly, in today's APOD, it could be that the colliding stellar winds create the strong emission nebula between the cluster and the star inside a cavity of gas and dust. Ann Huh? I thought it was the intense ultraviolet light from the massive stars that causes the emission nebula. Stellar wind j...
- Mon Oct 04, 2010 1:56 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Coreshine from a Dark Cloud (2010 Sep 30)
- Replies: 13
- Views: 2867
Re: APOD: Coreshine from a Dark Cloud (2010 Sep 30)
The article that Art posted gives me an opportunity to ask a question that I have been pondering for some times. It is well known that stars are formed inside gas and dust clouds and planets are formed within the accretion disks around the newly formed stars. However, is it also possible that planet...
- Thu May 13, 2010 12:05 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Herschel Crater on Mimas of Saturn (2010 May 11)
- Replies: 22
- Views: 6686
Re: APOD: Herschel Crater on Mimas of Saturn (2010 May 11)
This is a moon made of water ice... I am always puzzled how it is possible that there could be such a concentration of some chemical compound, in this case water ice, that would condensed into a large body composing mostly of that chemical compound. I would think that following a supernova, most el...
- Wed Mar 24, 2010 2:01 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Phobos from Mars Express (2010 Mar 17)
- Replies: 53
- Views: 24004
Re: APOD: Phobos from Mars Express (2010 Mar 17)
wonderboy, If Phobos is as cracked up as that (all that it is cracked up to be!), what is holding it together? The tidal forces would still be acting on it, so why hasn't it spread out into a 'string of pearls"? OK, maybe it made a close approach to the Chandresekar limit at one time, and near...
- Sat Feb 20, 2010 1:25 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: An Unusually Smooth Surface on... (2010 Feb 17)
- Replies: 19
- Views: 3873
Re: APOD: An Unusually Smooth Surface on... (2010 Feb 17)
Ergo: in 4 or 5 billion years the barycenter may well be located above the surface of the Earth and The Moon will cease to be " a moon ." Well, in 4 or 5 billion years, the Earth and the Moon will be either vaporized or burned to crisp by the Sun in its red giant stage. So the matter will...
- Mon Jan 18, 2010 3:44 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Atlantis to Orbit (2010 Jan 17)
- Replies: 14
- Views: 2768
Re: Atlantis to Orbit (2010 Jan 17)
At the risk of starting another round of arguments on global warming, why do you think it is a hoax? Something to do with you not wanting to change your way of life by using less energy derived from fossil fuel?Redbone wrote: ... unlike the billions of dollars wasted on the global warming hoax.
Gary
- Wed Dec 30, 2009 1:40 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Rigel and the Witch Head Nebula (2009 Dec 29)
- Replies: 9
- Views: 3555
Re: Rigel and the Witch Head Nebula (2009 Dec 29)
Thanks to everyone for all the help. :P http://upload.wikimedia.org/wikipedia/commons/0/0c/Rigel_sun_comparision.png Computer generated image of Rigel compared to the Sun (to scale) :?: How was the diameter of Rigel measured at 800 ly distance? Anyway, your computer-generated image makes the Sun lo...
- Tue Dec 22, 2009 3:10 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Star Cluster R136 Bursts Out (2009 Dec 21)
- Replies: 3
- Views: 2185
Re: Star Cluster R136 Bursts Out (2009 Dec 21)
I recall that during the 1950s, when I was a teenager interested in all things astronomical, that astronomers once thought that 30 Doradus was a single massive star.
Gary R
Gary R
- Wed Nov 25, 2009 5:47 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: NGC 253: Dusty Island Universe (2009 Nov 21)
- Replies: 39
- Views: 4727
Re: Silver Dollar Galaxy NGC 253 (2009 Nov 21)
Science gave us abortion, and said it was good, after all we are either all atheists or fools. Now we see the most fervent opposition to abortion comes from those that have experienced it. Sometimes the soul, truth rears its ugly head at the wrong time. You are bringing religion or moralities to th...
- Tue Nov 10, 2009 12:59 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Galaxy Merger (2009 November 9 APOD)
- Replies: 7
- Views: 1549
Re: Galaxy Merger (2009 November 9 APOD)
Will the stars and other matter in the tidal tails be falling back into the merged galaxy or will they be dispersed into the intergalactic space?
Gary
Gary