The speed of light is the Universe’s ultimate speed limit, and much of modern physics – as laid out in part by Albert Einstein in his special theory of relativity – depends on the idea that nothing can exceed it. Much of modern physics depends on the idea that nothing can exceed the speed of light.
Thousands of experiments have been undertaken to measure it ever more precisely, and no result has ever spotted a particle breaking the limit.
But Dr Antonio Ereditato and his colleagues have been carrying out an experiment for the last three years that seems to suggest neutrinos have done just that. Dr Ereditato has labelled the results as “crazy” because Albert Einstein’s theory of relativity — which has been the basis of physics for a century — depends on the idea that nothing can exceed the speed of light in a vacuum.
What hangs in the balance? Oh, just the laws of nature and our understanding of the universe.