The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration.

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

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

The record-setting cosmic outburst was actually a gamma-ray burst, the most powerful class of cosmic explosions.

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

A team of astronomers including George Washington University physics Ph.D. student Eliza Neights recorded an extraordinary ...

NASA has visualized the cataclysm, which is thought to have caused a mysterious eruption of gamma rays captured by telescopes ...

The 11th day of the 18th annual Space Telescope Advent Calendar features a new view of the heart of a nearby spiral galaxy.

NASA's Chandra X-ray Observatory has revealed stunning cosmic structures within galaxy clusters, like bubbles and waves, ...

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

An artist's impression depicts the accretion disc surrounding a black hole, in which the inner region of the disc wobbles. In ...

An artist's impression depicts the accretion disc surrounding a black hole, in which the inner region of the disc wobbles. In ...