Black holes

A new study shows that extreme black holes could break the famous “no-hair” theorem, and in a way that we could detect.

Small black holes were nowhere to be found, leading astronomers to wonder if they didn’t exist at all. Now a series of findings, including a “unicorn” black hole, has raised hopes of solving the decade-long mystery.

For decades, astronomers debated whether a particular smudge was close-by and small, or distant and huge. A new X-ray map supports the massive option.

Featuring paradoxical black holes, room-temperature superconductors and a new escape from the prison of time.

Once missing in action, middleweight black holes have finally been detected. Now researchers are trying to figure out how they grow from small ones.

In a landmark series of calculations, physicists have proved that black holes can shed information.

Roger Penrose, Reinhard Genzel and Andrea Ghez were awarded the Nobel Prize in Physics for their studies of black holes.

It was an old idea of Stephen Hawking’s: Unseen “primordial” black holes might be the hidden dark matter. A new series of studies has shown how the theory can work.

Claudia de Rham showed how theories of “massive gravity” could potentially get rid of the need for dark energy.