(CNN) — Space scientists seeking to understand the enigmatic origins of powerful cosmic rays have detected an extremely rare, ultra-high-energy particle that they believe traveled to Earth from beyond ...

The Earth's atmosphere has been blasted by the second strongest ultrahigh-energy cosmic ray (UHECR) to ever be observed. While its exact origins remain unknown, astrophysicists are pointing the finger ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists in Utah have identified a rare cosmic ray that could've come from beyond the Milky Way. It has been named the ...

The Telescope Array has detected the second-highest-energy cosmic ray ever observed, marking a significant milestone in astrophysics. This groundbreaking discovery follows the famed Oh-My-God particle ...

There are plenty of mysteries in the cosmos, and researchers from the University of Utah have found a new clue in one from more than 30 years ago. In 1991, scientists detected a cosmic ray so powerful ...