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

While solitary black holes should be common, they are hard to find. The one in Sagittarius revealed itself when it passed in front of a dim background star, magnifying the star’s light and slowly ...

First, the outer boundary of these cosmic titans is a one-way light-trapping surface called an event horizon, the point at which a black hole's gravity is so powerful that not even light can escape.

Earlier studies provided a rough picture of black holes, like a low-resolution image with 1,000 pixels. In contrast, ...

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

This week, researchers reported a brain circuit linked to the intensity of political behavior. Microbiologists found that the ...

Unlike regular black holes, they weren’t formed by collapsing stars. Instead, they emerged when extremely dense patches of space collapsed under their own gravity. These cosmic leftovers vary ...

This suggests the material is orbiting a supermassive black ... than gravity could pull it together. All of this paints a picture that LRDs are very young supermassive black holes that are quickly ...

The Event Horizon Telescope Collaboration utilized its worldwide network of radio telescopes to provide this new image, which captures light bent by the powerful gravity of the black hole. Photo from ...

Outside the event horizon of a black hole—the point from beyond which no matter or light can return—superheated gas and dust piles up, warped by gravity into a glowing ring of light.

Black holes are remarkable astronomical objects with gravity so strong that nothing, not even light, can escape them. The most gigantic ones, known as “supermassive” black holes, can weigh ...