Incredibly powerful 'cosmic ray' signal spotted in distant s

The ‘Amaterasu particle’ is the second most powerful particle of its kind ever seen – but researchers do not even really know what it is

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Osaka , Japan , University Of Utah , Utah , United States , John Matthews , John Belz , Toshihiro Fujii , Osaka Metropolitan University , Telescope Array , Local Void , Milky Way , Osmic Ray , Charged Particle ,