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27 November 2013 12:59 pm ,
Vol. 342 ,
The new head of the National Center for Science Education promises to "fight the good fight" against attacks on...
Analyses of the H7N9 strains isolated from four new cases show that the virus is evolving rapidly, heightening anxiety...
In 2009, Jack Szostak shared a Nobel Prize for his part in discovering the role of telomeres, the end bits of...
Science has exposed a thriving academic black market in China involving shady agencies, corrupt scientists, and...
Paper-selling agencies flourish in the aura of reputable businesses. For some scientists, it may be difficult to tell...
Data collected by satellites and floating probes have chronicled a 2-decade rise in the temperature and thickness of a...
Cholesterol, the artery-clogging molecule that contributes to cardiovascular disease, has another nasty trick up its...
Until recently, the Defense Advanced Research Projects Agency (DARPA) kept its plans for its $70 million portion of the...
- 27 November 2013 12:59 pm , Vol. 342 , #6162
- About Us
Live Chat: Have Neutrinos Broken the Speed Limit of Light?
28 September 2011 10:24 am
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.
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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Alan Kostelecky is a theoretical physicist who studies the fundamental laws of nature. His publications span a broad range of topics in particle physics, gravitation, string theory, mathematical physics, and atomic physics. He pioneered the idea that tiny observable deviations from the laws of relativity could emerge from an underlying unified theory. His comprehensive theoretical description of relativity violations, called the standard-model extension (SME), has led to many new experimental tests of special and general relativity.
Alfons Weber is reader in particle physics at the University of Oxford and holds a joint appointment with the Rutherford Appleton Laboratory. He worked at the LEP collider at CERN before moving to the United Kingdom, where he is now working on the MINOS and T2K experiments.