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March 16, 2012

Einstein can rest easy as neutrinos obey speed limit

New research suggests neutrinos that appeared to break one of Einstein's fundamental theories by travelling faster than the speed of light actually keep within the universal speed limit after all.

The latest measurement of the sub-atomic particles' speed of flight from the CERN research centre in Geneva to Gran Sasso in central Italy contradicts an initial super-fast reading reported last September, which caused a scientific sensation.

Since then, more doubts have crept in about the original claims, especially after news last month that the first finding from the so-called OPERA experiment may have been distorted by faulty cabling.

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