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Mysterious cosmic ray observed in Utah came from beyond our galaxy, scientists say

  • Space scientists have detected an ultra-high-energy particle that originated from beyond the Milky Way galaxy, adding to the enigma surrounding the origins of cosmic rays.
  • The recently discovered particle, named the Amaterasu particle, has a record-breaking energy level of 244 EeV, rivaling the most powerful cosmic ray ever observed.
  • The source of these ultra-high-energy particles remains unknown, with theories suggesting a larger magnetic deflection than predicted, an unidentified source in the Local Void, or a gap in understanding high-energy particle physics.
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A rare discovery shakes astrophysics: Scientists recorded an energetic cosmic particle of mysterious origin: the “Amaterasu particle.” This discovery could turn our previous knowledge of the universe upside down.

·Berlin, Germany
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Nature broke the news in United Kingdom on Thursday, November 23, 2023.
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