‘Neutrino factories’ could hold the solution to the cosmic ray mystery

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

Researchers know cosmic rays are charged particles from deep space that continuously strike Earth with energies as great 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 so much force that they travel billions of light-years has, however, remained a mystery.

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