The Milky Way shines in high-energy neutrinos

Abstract

The most energetic astrophysical sources in the Milky Way, cosmic accelerators capable of producing high-energy cosmic rays, have resisted discovery for over a century. Up to now, astrophysicists sought these sources mainly by scouring the Galaxy for the gamma rays they are expected to emit. In 2023, the IceCube Neutrino Observatory discovered high-energy neutrinos from the Milky Way, inaugurating a telltale stream of evidence of cosmic-ray production and interaction in the Galaxy.

Comments: 4 pages, 1 figure, author's version of publication in Nature Reviews Physics, Year In Review 2023 (https://rdcu.be/dtuNz)