Going back to an old standby in the cool department, we get this report from the Galaxy Zoo team:
A new class of galaxy clusters has been identified by volunteers and astronomers of the Galaxy Zoo project, together with the Sloan Digital Sky Survey. These clusters are rare, and have apparently gone unnoticed before, despite their unusual linear properties. Astronomers believe the identification of these types of clusters depend on the visual inspection of large numbers of galaxies, a feat which has only recently been made possible by the Galaxy Zoo project, and this may explain why they haven’t been discovered until now. “Space is, after all, really big,” said the Galaxy Zoo scientists, “and full of really surprising things.”
Be sure to read the whole article! The original paper can be found linked from the Galaxy Zoo blog.