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

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

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 ...

String theory, an attempt to merge gravity with quantum physics, says yes. A new study suggests that within black holes lie tangled pathways of strings called supermazes, which hold that ...

In 2022, experts from the University of Amsterdam simulated a black hole event horizon to test Stephen Hawking's 1974 radiation theory.

Supermazes” are theoretical structures that provide a fresh blueprint for understanding the microscopic complexity of black ...

The black hole information paradox has puzzled physicists for decades. New research shows how quantum connections in spacetime itself may resolve the paradox, and in the process leave behind a ...

The original version of this story appeared in Quanta Magazine. At the beginning of time and the center of every black hole lies a point of infinite density called a singularity. To explore these ...

"Now, our recipe for regular black holes goes precisely in this direction, but instead of using a complete theory of quantum gravity, we use something called an 'effective theory.' This is a ...

Seen from outside the event horizon, the black hole is featureless. However, according to quantum mechanics black holes must exhibit a vast amount of microstructure. String theory explains this by ...