A cosmic explosion known as GRB 250702B is by far the longest gamma-ray burst astronomers have ever seen—if it’s even one at ...

You might think astronomers have seen it all, but the universe still throws us occasional new mysteries to keep us on our ...

In a first-of-its-kind experiment, scientists have recreated "cosmic fireballs" here on Earth in a particle accelerator.The ...

Astronomers observed the fading light of supernova SN 2025kg, which followed the fast X-ray transient (FXT) named EP 250108a.

Researchers using new simulations suggest that the Milky Way’s past collisions may have reshaped its dark matter core. This ...

New research suggests that the largest cosmic structure is even bigger and closer to Earth than we knew. It goes against scientists' models of cosmic evolution.

A mysterious glow of gamma rays in the centre of our galaxy has been a mystery for ... However, the aloof material has yet to be directly detected, making it one of the biggest challenges in modern ...

They were first spotted in the late 1960s by satellites designed to ferret out secret thermonuclear tests by the Chinese and Soviets, but some of the bursts of high-energy gamma rays picked up by ...

To continue reading this content, please enable JavaScript in your browser settings and refresh this page. Preview this article 1 min Washington University ...

A mysterious gamma-ray glow from the Milky Way's core has scientists divided. While pulsars were the leading theory, new ...

Using NASA's Fermi gamma-ray space telescope, astronomers from Shanghai Normal University in China and elsewhere have ...