Astrolunch is a weekly talk here at the Department of Physics and Astronomy where speakers give talks on a topic outside of their usual expertise. This week’s Astrolunch talk was by Lucy Wilcock, a PhD student studying star formation here at Cardiff University. She overveiwed a recent paper in Nature, covering some results from PAMeLA and the [...]
Here are some things that get talked about a lot as fact, but really are just good theories. When verified by direct observation, most of these will be considered a nobel-prize winning, ground-breaking new frontier in physics. Until then, they are just good ideas, waiting to be verified.
A while ago I posted about the Bullet Cluster, and an image which seems to reveal the dark matter within it. Now a new image from Hubble seems to do the same thing for the galaxy cluster CL0024+17.
Now I am personally rather sceptical about the validity of images such as these, although I feel sure [...]
The image above shows the Bullet Cluster. Also known as 1E 0657-56, this is a pair of clusters of galaxies some 3.4 billion light years away. As Jon Davies told us in yesterday’s Astrolunch meeting however: you should be careful about believing everything you see. This image is not a regular photograph [...]
Copyright © 2010 Robert J. Simpson. Twitter @orbitingfrog
