Most energetic neutrinos detected so far may be primitive

This diagram shows the cubic kilometer neutrino telescope, KM3NeT. It consists of a series of detectors fixed on the seabed of the Mediterranean Sea. Neutrinos rarely interact with other matter, so a large number of detectors are required. Image credit: KM3Net Collaboration

In the exotic world of particle physics, neutrinos may be the most mysterious members. It rarely interacts with other matter, has little mass, and has no charge. These characteristics make it extremely difficult to study. Detecting them requires special facilities in deep caves, thick Antarctic ice, or the ocean floor. One of the most advanced … Read more