https://scitechdaily.com/10000000000000x-the-energy-of-visible-light-pulsars-record-breaking-gamma-rays-baffle-scientists/
H.E.S.S. observatory records 20 tera-electronvolts photons from the Vela pulsar. Scientists using the H.E.S.S. observatory in Namibia have detected the highest energy gamma rays ever from a dead star called a pulsar. The energy of these gamma rays clocked in …
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