Researchers have spent the past few years watching a black hole re-awaken roughly 300 million light-years away from Earth.

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 ...

Astronomers have reached deeper into the heart of a brilliant cosmic engine than ever before, using NASA’s Hubble Space ...

Black holes are fundamental to the structure of galaxies and critical in our understanding of gravity, space, and time. A ...

The quasi-periodic eruptions of X-rays from a black hole 300 million light-years away are unlike any researchers have ever ...

The spins of some early galaxies could be a clue that the entire observable universe exists within a black hole—except, that ...

Black holes have such extreme gravity that not even light can escape. They have been caught shredding entire stars and can ...

A mysterious black hole in a distant galaxy just woke up after decades of silence—and it’s putting on a cosmic light show! ESA’s XMM-Newton and other X-ray telescopes are capturing massive bursts of ...

Supermazes” are theoretical structures that provide a fresh blueprint for understanding the microscopic complexity of black ...

“This rare event provides an opportunity for astronomers to observe a black hole’s behavior in real time, using X-ray space telescopes XMM-Newton and NASA’s NICER, Chandra and Swift,” said Dr. Lorena ...

An eavesdropper hiding inside a black hole could still obtain information about quantum objects on its outside, a finding ...

Black hole jets may accelerate and brighten with distance, challenging old models, according to new EHT observations.