Ancient quasars seen by the James Webb Space Telescope technically shouldn’t exist, but one rare type of dark matter could ...

The passing gravitational waves “stretch or contract the universe by around 20 meters [about 65 feet] or so,” says Matthew ...

Traditional black holes, as predicted by Albert Einstein's theory of General Relativity, contain what are known as ...

By observing tiny ripples in spacetime called "gravitational waves" that propagate away from colliding black holes, ...

Supermassive black holes are often regarded as sources of wanton cosmic destruction, but there may be more to their powerful ...

Black holes might all have hearts of pure darkness, but many cloak themselves in rings of fire that blaze like little else in ...

Black holes can actively regulate the material they consume, using powerful jets of gas blasted into space, according to a ...

It's no secret that black holes are some of the weirdest objects in space. Their disks are fluffy like cake, and diving into ...

The strange behavior of hypervelocity stars suggests a nearby dwarf galaxy must contain a supermassive black hole. If so, a ...