Of KM3NeT’s two detectors, one is dedicated to more mundane atmospheric neutrinos. The other, dubbed ARCA, is located under nearly 3.5 kilometers of water off the coast of Sicily and is designed to detect astrophysical neutrinos by observing the debris of their rare interactions with water molecules.
Astronomers have detected the most powerful ghost particle ever found, and they're not sure where it came from. The particle, which momentarily flashed across a detector inside the Cubic Kilometre Neutrino Telescope (KM3NeT) at the bottom of the Mediterranean Sea, is a neutrino with an estimated energy of 220 quadrillion electron volts — making it more than 100 times more energetic than any previously detected.
Neutrinos, often called ‘ghost particles,’ are emitted by stars and are known for their negligible mass and ability to go undetected. According to an AFP report, they are the second most abundant particles in the universe. They carry no electric charge and can pass through vast quantities, sometimes even trillions, of our bodies.
