New experimental evidence is helping disprove last year's highly surprising finding of neutrinos breaking established physics laws by traveling faster than light.I'm not surprised, but I am a bit disappointed.
The finding involved clocking the neutrinos--tiny, nearly massless subatomic particles--as they traveled from the CERN particle accelerator near Geneva to the Gran Sasso National Laboratory in Italy, about 730km away. An experiment called Opera found the neutrinos taking less time to arrive than light would, but now another Gran Sasso experiment, Icarus, showed neutrinos making the journey at a more sedate pace under light speed, CERN said.
That finding comes after news in February that a fiber-optic connection problem could have shown too short a neutrino time of flight, though another factor could mean the timing was wrong the other way.
17 March 2012
Dammit, No Warp Drive
It looks like those Neutrinos were not traveling faster than light:
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