Search found 5 matches
- Fri Aug 12, 2011 4:07 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: NGC 7331 and Beyond (2011 Aug 12)
- Replies: 36
- Views: 8119
Re: APOD: NGC 7331 and Beyond (2011 Aug 12)
Great picture! Why would the central core of the galaxy be out of parallel with the main body of the galaxy?
- Sun Aug 07, 2011 5:42 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: MyCn18: An Hourglass Planetary Nebula (2011 Aug 07)
- Replies: 24
- Views: 5534
Re: APOD: MyCn18: An Hourglass Planetary Nebula (2011 Aug 07
If the outer layers are being ejected, why does it take on the shape of an hour glass? There must be other forces at work to allow the outer layers to be ejected not in a symmetrical shell formation but in an asymmetrical shape. The other question is that even if you say that the layers are being ej...
- Thu Jul 28, 2011 9:57 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: NGC 6188 and NGC 6164 (2011 Jul 28)
- Replies: 15
- Views: 4076
Re: APOD: NGC 6188 and NGC 6164 (2011 Jul 28)
"Star formations triggered by winds"? Errr you cannot have a wind in a vacuum! Less artistic licence and correct terminology!
- Wed Jul 27, 2011 7:15 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Introducing Comet Garradd (2011 Jul 27)
- Replies: 12
- Views: 4889
Re: APOD: Introducing Comet Garradd (2011 Jul 27)
Why do astronomers keep on insisting that comets are snowballs? Every space probe that has visited a comet has not found any snow, let alone quantities of water. Samples taken of comets tails show a different story. When has a ball composed supposedly of ice emit xrays? Yet comets do. State the fact...
- Wed Jun 29, 2011 9:59 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Abell 2744: Pandoras Cluster of Galaxies (2011 Jun 29)
- Replies: 24
- Views: 4705
Re: APOD: Abell 2744: Pandoras Cluster of Galaxies (2011 Jun
With dark matter, I thought it was still a theory and still nota proven scientific fact. If in the APOD it is coloured blue, does this mean you can measure it? How do you measure a theory? A discrepancy perhaps?