An "ultra-high-energy cosmic ray" is falling towards earth, which is so rare and powerful that puzzled scientists thought there had been a mistake when it was first detected.
Its origins remain unknown but baffled experts, who were left wondering "what the heck was going on,” believe only the most powerful of celestial events – much bigger than a star explosion – can produce them.
Named Amaterasu, after the Sun goddess in Japanese mythology, it is one of the highest-energy cosmic rays ever detected, according to the scientists.
The Amaterasu particle has an energy exceeding 240 exa-electron volts (EeV), which is millions of times more than what particles achieve at the Large Hadron Collider, the most powerful accelerator ever built.
It comes only second to the Oh-My-God particle, another ultra-high-energy cosmic ray which was detected in 1991, possessing 320 EeV of energy.
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