One particle’s trek suggests that ‘spacetime foam’ doesn’t slow neutrinos

The nearly massless particles appear to travel at virtually the speed of light

an illustration of a neutron being blasted from a blazar

SPEED TEST  A neutrino blasted from a bright galaxy known as a blazar (illustrated) along with a flare of light reveals that neutrinos travel at roughly the speed of light.  

ESA, NASA, Paolo Padovani/AVO project

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