Worth a look - some interesting stuff here.
http://www.eng.cam.ac.uk/photocomp/2009/

Examples from previous years can be found here

 

Here are some pics on the BBC website (much easier to navigate).

http://news.bbc.co.uk/1/hi/in_pictures/8192569.stm

The teddy bears in orbit are quite amusing (sent up on a high-altitude helium balloon!)