“Some ultra-high-energy neutrinos detected at IceCube have roughly 10 billion times the energy of a typical neutrino from the sun. One detected by a similar experiment has an energy 200 times higher than that. We don't really know where that neutrino came from,”

George Fuller · said date not stated · reported 2026-10-22

Fuller noted that some ultra-high-energy neutrinos detected at IceCube have roughly 10 billion times the energy of a typical solar neutrino.