CERN claims to have measured particle that travels faster than light

Big and controversial science news breaking today, via AP: "A pillar of physics — that nothing can go faster than the speed of light — appears to be smashed by an oddball subatomic particle that has apparently made a giant end run around Albert Einstein's theories. Scientists at the world's largest physics lab said Thursday they have clocked neutrinos traveling faster than light. That's something that according to Einstein's 1905 special theory of relativity — the famous E (equals) mc2 equation — just doesn't happen."

BBC News has a somewhat less breathless take here. More at Ars Technica, and Wired News.