The speed of light appears to have been broken again after scientists carried out a new set of experiments to test measurements that could require the laws of physics to be rewritten.
A meeting at Cern, the world’s largest physics lab, has addressed results that suggest subatomic particles have gone faster than the speed of light.
The team presented its work so other scientists can determine if the approach contains any mistakes.
If it does not, one of the pillars of modern science will come tumbling down.
Antonio Ereditato added “words of caution” to his Cern presentation because of the “potentially great impact on physics” of the result.
The speed of light is widely held to be the Universe’s ultimate speed limit, and much of modern physics – as laid out in part by Albert Einstein in his theory of special relativity – depends on the idea that nothing can exceed it.
Thousands of experiments have been undertaken to measure it ever more precisely, and no result has ever spotted a particle breaking the limit.
They recorded neutrinos travelling at 300,006 kilometres per second in a 450-mile underground tunnel between Switzerland and Italy. Light travels at 299,792 kilometres per second