Dark matter could be a type of matter in the universe that does not emit, absorb or reflect detectable light and appears to ...

A team of astronomers may have detected the gamma-ray signature produced when antimatter particles, or positrons, collide ...

A cosmic explosion detected on July 4, 2025, began with a 0.4-second gamma-ray burst and then continued glowing in softer ...

Picture a burst of energy so powerful that it can outshine entire regions of the cosmos, racing directly toward an object with gravity strong enough to trap light. A gamma ray burst meeting a black ...

Astronomers have observed the longest-lasting central engine activity ever recorded from a gamma-ray burst. The burst ...

On July 4, 2025, astronomers watched a cosmic explosion do something it was not supposed to do. The event began with a ...

Astronomers have been poring over a flood of data from NASA satellites and other facilities. They’re trying to work out what was responsible for an extraordinary cosmic outburst discovered on July 2, ...

The LHAASO observatory has detected gamma rays above 100 TeV from a gamma-ray binary for the first time, challenging current models of cosmic particle acceleration. (Nanowerk News) The Large High ...

Thunderstorms host a rich variety of electrical discharges that span time-scales from microseconds to minutes and produce radiation extending from radio waves up to high-energy gamma rays. Intense ...