The enigmatic origins of high energy cosmic rays
Expansion of Telescope Array in Utah’s West Desert will yield more clues about these mysterious particles that carry far more energy than an Earth-bound accelerator can deliver.
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Lightning, camera, gamma ray!
Researchers captured the first-ever video of a lightning-triggered terrestrial gamma ray flash.
Read MoreTelescope Array detects second highest-energy cosmic ray ever
Second only to the Oh-My-God particle, the newly dubbed Amaterasu particle deepens the mystery of the origin, propagation and particle physics of rare, ultra-high-energy cosmic rays.
Read MoreA BOLT OF INSIGHT
University of Utah-led team makes breakthrough in understanding rare lightning-triggered gamma-ray flashes.
Read MoreCATCHING SOME RAYS
Physicists plan to expand Telescope Array cosmic ray observatory, seeking the source of the most energetic particles in the universe.
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