Astronomers discovered a repeating, day-long gamma-ray burst, challenging theories of star deaths and black holes.

Astronomers have observed a gamma-ray burst (GRB) that challenges decades of understanding about these cosmic explosions.

Astronomers tracked the strangest gamma-ray burst yet. GRB 250702B is a repeating, day-long flash unlike anything seen before ...

Typical gamma-ray bursts are among the most energetic phenomena in the universe, usually associated with the collapse of massive stars or the merging of compact objects like neutron stars. They ...

Jan. 11 (UPI) --Astronomers studying gamma rays said they have found a mysterious phenomenon just outside of the Milky Way. Researchers published the findings in study Wednesday in The Astrophysical ...

Astronomers investigating gamma ray emissions have discovered that certain active galaxies are giving off bursts in regular patterns. This, the team says, could be an indication of galaxies harboring ...

But don't worry, no laws of physics are being violated. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. In a distant corner of the universe, ...

The first image of a black hole was of M87*, the supermassive monster at the center of the enormous elliptical galaxy M87.

'We found a much stronger signal, and in a different part of the sky, than the one we were looking for.' When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Down here at the bottom of our ocean of air, it’s easy to get complacent about the hazards our universe presents. We feel safe from the dangers of the vacuum of space, where radiation sizzles and ...

Astronomers analyzing 13 years of data from NASA's Fermi Gamma-ray Space Telescope have found an unexpected and as yet unexplained feature outside of our galaxy. Astronomers analyzing 13 years of data ...