The most powerful cosmic ray since the Oh-My-God particle puzzles scientists

Scientists have detected the highest-energy cosmic ray since the Oh-My-God particle in 1991. Cosmic rays are high-energy subatomic particles that often originate from a stellar explosion or black hole. The latest turbocharged particle, dubbed Amaterasu, seems to have come from a void-like region in space. One explanation could be that Amaterasu actually came from a different region and scientists’ models of what influences the course of cosmic rays are off. Another possibility is that the rays are produced by unknown physics.