Physicists at the Fermi National Accelerator Laboratory are reporting that they have stumbled onto a new clue that could help unravel one of the biggest mysteries of cosmology: why the universe is composed of matter and not its evil-twin opposite, antimatter. If confirmed, the finding portends fundamental discoveries at the new Large Hadron Collider outside Geneva, as well as a possible explanation for our own existence.
http://www.nytimes.com/2010/05/18/science/space/18cosmos.html?src=twt&twt=nytimesscience