Black holes

A black hole formula worked out in the 1970s remains the most concrete clue physicists have about the threads of the space-time fabric.

These three imagined scenarios lead many physicists to doubt that space-time is fundamental.

This special issue of Quanta Magazine explores the ultimate scientific quest: the search for the fundamental nature of reality.

For decades, extremal black holes were considered mathematically impossible. A new proof reveals otherwise.

By studying the geometry of model space-times, researchers offer alternative views of the universe’s first moments.

Black holes are inescapable traps for most of what falls into them — but there can be exceptions. The theoretical physicist Leonard Susskind speaks with co-host Janna Levin about the black hole information paradox and how it has propelled modern physics.

Teleporting people through space is still science fiction. But quantum teleportation is dramatically different and entirely real. In this episode, Janna Levin interviews the theoretical physicist John Preskill about teleporting bits and the promise of quantum technology.

The astrophysicist Erin Kara measures time lags in black holes’ X-ray glows, which reveal the complexity of the objects’ closest surroundings.

Mathematicians prove a theorem that illuminates the geometry of universes with tiny amounts of mass.