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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. In 1991, the University of Utah Fly’s Eye experiment detected the highest-energy cosmic ray ever observed. Later d
Astrophysicists at the University of Utah and the telescope array have detected cosmic rays with energies beyond theoretical limits, challenging current
Artist's illustration of ultra-high-energy cosmic ray astronomy to clarify extremely energetic phenomena. OSAKA METROPOLITAN UNIVERSITY/KYOTO…
Scientists seeking to understand the enigmatic origins of powerful cosmic rays from space have detected an ...
Origins of Amaterasu particle, one of the highest-energy cosmic rays ever detected, are unknown