Asteroids

A while ago there was a website I enjoyed using where you helped astronomers categorize galaxies, Galaxy Zoo. This site has now expanded to other projects, which are collectively called the Zooniverse (disappointingly, no, I don't think it is a Mighty Boosh reference). Now they not only have have projects that involve astronomical data from the moon, sun and Milky Way but there is also a weather one, and one based on transcribing old papyri. But my favorite at the moment is Ice Hunters, where you check highly-processed photos for possible asteroids (more technically "Kuiper Belt Objects"). Not for everyone, I'm sure, but it's kind of relaxing for me.