Prefer Newsweek on Google to see more of our trusted coverage when you search. Researchers have detected an extremely energetic cosmic ray from an unknown source in the universe. The detection of a ...

A colossal cosmic ray, dubbed Amaterasu, struck Earth in 2021, baffling scientists with its immense power and unknown origin.

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 ...

Radio sensors at South Pole suggest arrays could record neutrinos of unprecedented energies over hundreds of cubic kilometres ...

The study of cosmic rays, high-energy particles originating from extraterrestrial sources, has significantly progressed with the advent of both ground-based and space-borne detection techniques.

In the exotic world of particle physics, neutrinos may be the most mysterious members. They rarely interact with other matter ...

The surface detector array of the Telescope Array experiment, deployed by helicopter. Credit: Institute For Cosmic Ray Research, University Of Tokyo Around 30 years ago, scientists in Utah were ...

Artist’s illustration of extensive air showers induced by ultra-high-energy cosmic rays. Credit: Toshihiro Fujii/L-INSIGHT/Kyoto University Cosmic rays are highly energetic subatomic particles ...

The Universe teems with extreme environments, ranging from the very coldest temperatures to the highest energy sources possible. As a consequence, extreme objects such as supernova remnants, pulsars ...

Scientists with the Askaryan Radio Array in Antarctica have recorded the first in-ice evidence of radio pulses from cosmic rays, validating a decades-old prediction. The 13 detected events match ...

An unprecedented neutrino detection in the Mediterranean has pushed the boundaries of high-energy astrophysics, raising new ...