Record-Breaking High-Energy Neutrino Detected in Mediterranean

The ARCA detector captured the most energetic neutrino ever recorded, opening new possibilities for understanding cosmic phenomena.

On February 13, 2023, the ARCA detector in the Mediterranean identified a neutrino with an unprecedented energy of 220 Peta-Electronvolts.
This energy level is over 20 times higher than the previous record set by the IceCube detector in Antarctica.
The detection was made possible by the KM3NeT collaboration, an international effort utilizing deep-sea water as a detection medium for cosmic particles.
Scientists believe the neutrino likely originated from a distant galaxy, potentially linked to phenomena like supermassive black holes or other unknown astrophysical sources.
The discovery marks a major milestone in neutrino astronomy, with researchers anticipating further breakthroughs once the KM3NeT observatory is fully operational.