https://www.galaxyzoo.org/A second run for this project. On this website you can help categorizing galaxies according to their features. The website will show you pictures of galaxies taken by the Sloan digital sky survey (SDSS) and will ask you a series of multiple-choice questions regarding their shape. By cross verfying the results with those of other users, a catalog of classified galaxies is constructed.
There is no software to do this. Humans do it better than computers and a lot of humans do it a lot better. If you want to know how your clicking contribute to science, read "the story so far" section about results from the previous run and published research.
More constructive than surfing for pr0n!
