A new study, published in the journal Physical Review Letters, suggests that some of the highest-energy cosmic rays could ...

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

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

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

Galactic cosmic rays — high-energy particles from outside the solar system — could theoretically power life on certain frigid worlds. The radiation can trigger chemical reactions underground, whose ...

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 ...

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 ...

Dark energy may be even more complicated than scientists have bargained for, potentially “evolving” over time rather than remaining relentlessly constant in its acceleration of cosmic expansion.

Mars, Europa and Enceladus are the three most promising locations in the solar system to search for life living off cosmic rays. When you purchase through links on our site, we may earn an affiliate ...