Sir Patrick Moore looks at the results of the Galaxy Zoo project, a website which sorts the galaxies of the Universe into spirals and ellipticals, which has been recorded by volunteers of the general public.

Dr Chris Lintott talks to a Dutch schoolteacher who made a unique discovery whilst participating in the project.

The world of astronomy. Gamma ray bursts are some of the largest explosions in the universe, and Sir Patrick Moore discovers how some of these monstrous events mark the spectacular deaths of the first stars.

Also, Dr Chris Lintott visits the NASA Phoenix team fo find out the latest from the Mars Polar explorer.