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 ...

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 ...

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

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

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

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

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

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

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

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

Researchers have created a fully relativistic model showing that gravitational waves might carry hidden clues about dark ...