Yhn SciencePhysics first seen 5 h ago, last 16 min ago, peak #7
Scientists explain how a 300 TeV photon reached Earth
Original: Scientists explain how a 300 TeV photon could reach Earth
Physicists have detailed how an extremely high-energy photon, roughly 300 teraelectronvolts, could have travelled to Earth despite the expected limits on such particles. The finding, reported by Physics World, sheds light on how cosmic rays at extreme energies propagate across the galaxy and may help refine models of particle acceleration in extreme environments.
Why now: The physics community is discussing the finding because it challenges assumptions about how ultra-high-energy photons survive interstellar travel.
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