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Registration complete. Particles and interactions Research update Do neutrinos move faster than the speed of light? Want to read more? Register to unlock all the content on the site. E-mail Address. Both types of particles reached our planet at almost exactly the same instance. According to Goldberg's calculations, if neutrinos travel faster than light by the amount the OPERA team claims, then neutrinos from that supernova should have been detected in —three years before the photons.
Goldberg concedes that supernova neutrinos are less energetic—and would thus be traveling slower—than the neutrinos from CERN's particle accelerator. However, "assuming Einstein was correct, both types [of neutrinos] would be moving at something like Even if the OPERA results are confirmed by other scientists, they wouldn't totally invalidate Einstein's theories of general and special relativity, Stanford University's Strigari stressed.
Those theories still explain a remarkable range of observed phenomena in the universe. Drexel University's Goldberg agreed that physicists won't be discarding Einstein's theories anytime soon. All rights reserved. Supernova Neutrinos Not So Speedy Dave Goldberg , an astrophysicist at Philadelphia's Drexel University, said that if faster-than-light neutrinos did exist, they would likely have been observed in nature before now.
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India bets its energy future on solar—in ways both small and big. By Lisa Grossman. Closing in on the speed of light. The faster-than-light neutrino saga is officially over. Thank you for visiting nature. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer.
In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript. Neutrinos obey nature's speed limit, according to new results from an Italian experiment. The finding , posted to the preprint server arXiv. Neutrinos are tiny, electrically neutral particles produced in nuclear reactions. Last September, an experiment called OPERA turned up evidence that neutrinos travel faster than the speed of light see ' Particles break light speed limit '.
According to the group's findings, neutrinos made the kilometre journey 60 nanoseconds faster than predicted if they had travelled at light speed. The announcement made international headlines, but physicists were deeply sceptical. The axiom that nothing travels faster than light was first formulated by Albert Einstein and is a cornerstone of modern physics. OPERA defended its announcement, saying that it could find no flaw in its measurement.
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