A detected neutrino, dubbed IceCube-170922A and calculated to have an energy of 290 TeV, offered a relatively clear track back into space. An automatic alert went out less than a minute later.
Several observatories initially didn't see anything unusual. Six days later, the Fermi team reported the satellite had found that a blazar, known as TXS 0506+056 and just 0.1° away from the neutrino track suggested by IceCube, was especially bright, having started flaring a few months earlier.
Вот уж принёс так принёс...