There may be an ultraheavy explanation for the mystery surrounding the origins of the highest-energy particles ever observed.

A long-standing cosmic mystery is beginning to yield new clues as researchers uncover a strikingly consistent pattern in the ...

Detection by Askaryan Radio Array holds promise for future research into sources, nature of cosmic rays and neutrinos ...

Dive into 25 cosmic mysteries science can't explain, from dark matter to dark energy. Explore the universe's most baffling ...

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 ...

More than one million sources of energy are featured in the first X-ray images from the eROSITA space telescope. By Laura Baisas Published Feb 5, 2024 12:00 PM EST Add Popular Science (opens in a new ...

A century after their discovery, cosmic rays—particles of extreme energy originating from the far reaches of the ...

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

Some of the most energetic cosmic rays in the galaxy may come from a surprisingly small source. If Max Planck Institute for Astrophysics researcher Laura Olivera-Nieto and her colleagues are right, ...

Massive stars know how to go out in style. Some of the brightest, longest-lived flares probably come from megastars getting shredded by supermassive black holes, researchers report in the June 6 ...

The international collaboration of the Dark Matter Particle Explorer (DAMPE) satellite on Thursday announced its latest findings, reporting for the first time the observation of the charge-dependent ...

With an almost cosmic calm, two great U.S. physicists, both Nobel Prizemen, last week joined again in spirited dispute over the nature of cosmic rays. The scene of the controversy was the annual ...