Astronomers have observed a star wobbling in its orbit around a ravenous supermassive black hole that is ripping it apart and ...

The X‑arithmetic technique offers a powerful new way to map the physics of other galactic structures across the universe and ...

How confusing inevitability with reality built decades of paradox. What if general relativity never actually tells us that ...

A strange X-ray signal spotted decades ago may be the result of a star that got attacked by two black holes, one after the ...

Astronomers capture the twinkle of a distant quasar, RX J1131, and reveal the secret size of a black hole's fiery corona.

The cosmos has served up a gift for a group of scientists who have been searching for one of the most elusive phenomena in ...

Astronomers are learning more about the origins of supermassive black holes after new data is revealed from a 20-year-long ...

Learn how researchers used Einstein’s theory of general relativity to create the most accurate simulations to date.

Black holes, born from dying stars, are cosmic giants that grow by consuming matter and merging with others. While invisible ...

Intermediate mass black holes (IMBH), if they exist, have between about 100 and 1,000 solar masses, placing them in between ...

NASA’s new X‑ray images reveal how supermassive black holes sculpt galaxy clusters. Jets, bubbles, and ripples reshape cosmic ...

A remarkably clean gravitational-wave detection has confirmed long-standing predictions about black holes, including ...