"This is truly extraordinary," Itai Sfaradi of the University of California, Berkeley, said in a statement. "Never before ...

Long before researchers knew about quasars or black holes, astronomers were photographing what is now known as Quasar OJ287.

Stars often fall into black holes, and now it seems the opposite can also occur, producing an extra long-lasting explosion as ...

On July 2, 2025, NASA's Fermi Gamma-ray Burst Monitor (Fermi-GBM) captured around three hours' worth of signals that appeared ...

Astronomers have observed a supermassive black hole far from the center of a galaxy where it ought to be giving off bright ...

Reionization is thought to have been driven by ultraviolet light produced by both early stars and active galactic nuclei ...

The right to a pension has been a central plank of the European social contract for decades. But longer life spans and fewer ...

Astronomers have achieved the first radio image of a supermassive black hole pair, using the retired Russian RadioAstron ...

After decades of searching, astronomers have imaged two supermassive black holes in orbit around each other at the heart of ...