The massive black hole has been dubbed GW231123. Its unusual size and behavior is challenging scientists' understanding of ...

A new method to analyze gravitational-wave data could transform how we study some of the universe's most extreme events—black ...

A black hole jet from the Centaurus A galaxy is "hitting something along its path," that is baffling astronomers. The Chandra ...

Scientists predict one of the major surveys by NASA's upcoming Nancy Grace Roman Space Telescope may reveal around 100,000 celestial blasts, ranging from exploding stars to feeding black holes. Roman ...

Gravitational-wave detectors have captured their biggest spectacle yet: two gargantuan, rapidly spinning black holes likely ...

Caption: Astronomers have revealed the largest black hole merger to date. This illustration shows how the merger would appear to our eyes if we could somehow travel in a spaceship for a closer look.

After its voyage past Mars, Mariner 4 maintained intermittent communication with JPL and returned data about the interplanetary environment for two more years. But by the end of 1967, the spacecraft ...