The mission — known as Payload for Ultrahigh Energy Observations, or PUEO — lifted off Dec. 20, 2025, from NASA’s launch ...

The IceCube Neutrino Observatory has detected a "high-energy neutrino emission from within the Milky Way," according to AAAS.

"It's astonishing to find such a strong radio signal at this distance." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A vast cloud of energetic ...

You can't see, feel, hear, taste or smell them, but tiny particles from space are constantly raining down on us.

Demonstration of statistical analysis for 3D polarization results with the initial 23 μs of Flash 1 (19:52:38). (a) Orientation distribution in AZ (−180°–180°) and ZE (0°–90°) for random pairs of 2D ...

A galaxy cluster 10 billion light-years away glows with energy: white marks galaxies, red shows a newly found radio mini-halo, and blue traces hot X-ray-emitting gas. (Chandra X-ray Center via ...

A newly discovered radio halo, 10 billion light-years away, reveals that galaxy clusters in the early universe were already steeped in high-energy particles. The finding hints at ancient black hole ...

"WIMPs are still the leading candidate for dark matter, but billions of dollars of experiments have been done, only getting ...

A burst of high-energy radiation has struck Spain’s newest military communications satellite, jolting a flagship program that ...

The CosmicWatch device costs only $100 to make, making it accessible for both high school students and spacecraft operators.

High-energy astrophysics investigates the most energetic processes in the Universe, from the acceleration of charged particles in supernova remnants to the production of ultra-high-energy neutrinos ...