RESEARCH HIGHLIGHTS

摘要

Two of the most energetic neutrinos detected by a telescope in the Antarctic may have come from the cores of distant galaxies. Neutrinos are stable and can travel far in space, so they could shed light on distant astrophysical and galactic objects. The Antarctic telescope IceCube picked up signs of neutrinos in 2011 and 2012 that were the first ever measured with energies of 1 petaelectronvolt (1 × 10~(15) electronvolts), suggesting a powerful source such as a blazar - a type of high-energy galaxy.