Earth was hit by an ultra-powerful cosmic ray from a void in the universe, researchers remain clueless about its origin. Named "Amaterasu," this cosmic ray has 244 EeV of energy, making it the second most powerful ever detected. Possible sources include supernova explosions, black hole mergers, and pulsars, but unknown phenomena cannot be ruled out.

https://www.livescience.com/space/cosmology/earth-slammed-by-ultra-powerful-goddess-particle-cosmic-ray-and-we-have-no-idea-where-it-came-from