China's Large High Altitude Air Shower Observatory (LHAASO) - one of the country's key national science and technology infrastructure facilities - has found a dozen ultra-high-energy (UHE) cosmic accelerators within the Milky Way. It has also detected photons with energies exceeding 1 peta-electron-volt (quadrillion electron-volts or PeV), including one at 1.4 PeV. The latter is the highest ener
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