Record-breaking neutrino tears through the Mediterranean Sea A neutrino with more energy than we've ever seen before was picked up by a cubic kilometre neutrino telescope (KM3NeT), a pair of detector arrays at the bottom of the Mediterranean Sea. The discovery of the 120 peta-electron volts neutrino has taken physicists by surprise, and it could be a first tantalising glimpse into some of the universe’s most cataclysmic events, such as the merging of supermassive black holes. Learn more: https:/