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

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The basic idea is that you send a beam of light around a pair of black holes spinning around each other prior to a merger, or ...

James is a published author with four pop-history and science books to his name. He specializes in history, strange science, and anything out of the ordinary.

Warner and his co-authors, Iosif Bena and Dimitrios Toulikas, both at the Institute of Theoretical Physics in France, and Anthony Houppe of the Swiss Federal Institute of Technology Zurich, described ...

Every big galaxy has a supermassive black hole at its center, but scientists are still trying to fully understand how these ...

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 ...

The energy source behind both quasars and microquasars is the spin of the black hole itself. As they gradually give up this ...

A lonely black hole roaming the cosmos in solitude has been confirmed for the first time. A closer look has revealed the dark ...

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

Material falling into the intense gravity of the black hole can heat up to extreme temperatures ... Despite continuing to work well, the telescope is in peril of losing funding.