View of OPERA detector. The OPERA experiment observes neutrino beams from CERN 730 km away at a Laboratory near Rome.
Researchers measured that the neutrinos travel at a velocity 20 parts per million above the speed of light, nature's cosmic speed limit. This is a result of the OPERA experiment which observes neutrino beams from CERN 730 km away at a Laboratory near Rome. The OPERA result is based on the observation of over 15000 neutrino events measured at Gran Sasso, and appears to indicate that the neutrinos travel at a velocity 20 parts per million above the speed of light, nature's cosmic speed limit. Given the potential far-reaching consequences of such a result, independent measurements are needed before the effect can either be refuted or firmly established. This is why the OPERA collaboration has decided to open the result to broader scrutiny. The OPERA measurement is at odds with well-established laws of nature, though science frequently progresses by overthrowing the established paradigms. For this reason, many searches have been made for deviations from Einstein's theory of relativity, so far not finding any such evidence.
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