One 750-TeV IceCube alert led astronomers to a rare, lensed dusty starburst at redshift 2.988. The galaxy is the best candidate in the field, not a confirmed neutrino source.
At 18:17 UTC on 22 September 2021, a pattern of light appeared inside a cubic kilometre of instrumented Antarctic ice. The IceCube Neutrino Observatory reconstructed it as a track left by a high-ener… [+13081 chars]