Intriguingly, ultralight dark matter might be able to turn into photons (light) — and it's through this process that the ...

In a landmark discovery, astronomers have confirmed the existence of a solitary stellar-mass black hole—an object with ...

Most people know that black holes are kind of scary. Admittedly, that's true, but black holes are so much more than that.

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 ...

A mysterious black hole in a distant galaxy just woke up after decades of silence—and it’s putting on a cosmic light show!

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