‘Neutrino factories’ may hold the answer to the cosmic ray mystery

New research has revealed that the high-energy neutrinos and cosmic rays that bombard Earth from deep space come from blazars – actively galactic nuclei (AGNs) that lurk at the center of galaxies and are powered by supermassive black holes. .

Researchers know that cosmic rays are charged particles from deep space that continuously strike the Earth with energies as high as 1020 electron-volts – a million times more energetic than the energies generated at the Large Hadron Collider (LHC). What could launch these particles with such force that they travel billions of light-years, however, remains a mystery.

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