2011 has been a busy year for particle physicists. They’ve found a new particle, closed in on the elusive Higgs boson, and witnessed some neutrinos acting pretty strangely, amongst other things. I’m talking, of course, about the faster than light neutrinos detected by the Opera experiment in Italy. They dominated the science headlines for a few days at the end of September and have been popping up every now and then since as scientists try to grapple with the idea that Einstein’s theory of special relativity may not be as watertight as they would like to think.

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