Physicists detect record-breaking neutrino from beyond our galaxy

Physicists have detected an extremely energetic neutrino, about 30 times more powerful than any previously observed. This neutrino likely originated from beyond our galaxy, possibly from interactions with the universe's oldest light or extreme astrophysical events. The detection occurred in February 2023 using the KM3NeT telescope in the Mediterranean Sea. The neutrino's energy is estimated at 220 petaelectronvolts, significantly surpassing the energy of particles in the Large Hadron Collider. Researchers are investigating the neutrino's source, considering both cosmogenic and astrophysical origins. The team plans to analyze more data to narrow down potential sources and understand the mechanisms behind such high-energy particles.