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| Mysteries of the neutrino: Physicists investigate the Big Bang particle Posted: 09 Nov 2012 08:13 AM PST Physicists at some of the world's leading research institutes are attempting to unravel the mysteries of a particle that played a role in the creation of the universe. The existence of neutrinos and anti-neutrinos -- particles that are almost massless and which travel at light speed from one side of Earth to the other -- was confirmed more than 50 years ago. Scientists believe that they were created at the Big Bang and might hold the key to the nature of the universe. But they are light particles that react weakly with matter and they change properties as they travel. This process -- named neutrino oscillation -- makes the particles highly elusive.  |
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