IceCube Senses Neutrinos Streaming From an Active Galaxy 47 Million Light-Years Away

Researchers using the IceCube Neutrino Observatory have detected neutrinos emanating from the energetic core of an active galaxy millions of light-years away. Neutrinos are difficult to detect, and finding them originating from the galaxy is a significant development. What does the discovery mean? Neutrinos are strange particles. For a long time, scientists thought these elementary …