What if everything we know—the stars, the galaxies, the expanding fabric of space-time—isn’t floating in a limitless void, but instead exists inside a black hole? It may sound like a work of ...

Einstein believed that black holes didn't really exist. But they do: that much we know. We don't know much else about them.

For example, the inside and outside of a black hole are decoupled by a boundary called the event horizon. Because black hole gravity is so strong, anything that takes place within the event ...

While he offers several explanations for what could cause the universe to rotate, he focuses mainly on the hypothesis that it is inside a gigantic black hole. Because black holes naturally rotate ...

Researchers have spent the past few years watching a black hole re-awaken roughly 300 million light-years away from Earth.

Black holes are one of the mysteries of the universe where all the laws of nature as we know them stop working.

As you descend toward a black hole, time slows to a crawl and light bends into oblivion. Cross the horizon, and your fate is ...

Primordial black holes could inhabit the modern-day cosmos, making them responsible for the phenomenon of dark matter, according to new research.

An eavesdropper hiding inside a black hole could still obtain information about quantum objects on its outside, a finding that reveals how effectively black holes destroy the quantum states near their ...