Incredibly powerful 'cosmic ray' signal spotted in distant space – and scientists have no clue what it is

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

Related Keywords

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 ,