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  • Dan is a deputy news editor for Science.
 

Live Chat: Have Neutrinos Broken the Speed Limit of Light?

28 September 2011 10:24 am
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See below for the chat box. Join us each Thursday at 3 p.m. EST for a live conversation with leading scientists and expert reporters.
Today's Topic

Nothing can go faster than light, right? Einstein said so. But last week a group of researchers in Italy announced that they'd measured the speed of thousands of neutrinos (tiny, almost massless particles that were fired at their detector from the CERN particle physics lab 730 kilometers away) and found they were traveling slightly faster than light. Is this the beginning of the end for Einstein's theory of relativity? Have the researchers simply made a mistake in their measurements? Or are the neutrinos, as some versions of string theory allow, taking a shortcut through a higher dimension and arriving in Italy in double-quick time?

Join us for a live chat on this page at 3 p.m. EDT on Thursday, 29 September, to discuss these and other questions with two experts in the field. You can leave your questions in the comments section below before the chat starts.

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Today's Guests


Alan Kostelecky


Alfons Weber



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