.webp)
In 2017 a single ghostly neutrino struck the IceCube detector buried in Antarctic ice, and its path pointed back to this flaring blazar four billion light years away. It was the first time a high energy neutrino was traced to its cosmic source, and a milestone for astronomy that observes with particles instead of light. One particle, one galaxy, case closed.
🚀 Fly there in the 3D universe