The James Webb Space Telescope has captured a mid-infrared picture of Sagittarius A*, filling in a long-standing gap in ...

Strange x-ray pulses hint at a surprisingly long-lived white dwarf orbiting precariously close to a supermassive black hole ...

The newly discovered "blazar," which has a mass equal to 700 million suns, is the oldest of its kind ever seen and changes ...

NASA's Chandra and NuSTAR telescopes have teamed up to study a supermassive black hole-powered quasar that could have played ...

A black hole infamous for strange features has once again baffled astronomers, this time with rapid X-ray flashes. What could ...

The first black hole that astronomers observed "turning off" just turned back on, releasing jets of hot gas into the cosmos.

"What If is an epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a ...

Astronomers have detected the most ancient blazar ever observed, originating from the early universe and emitting a beam of ...

Supermassive black holes with powerful jets of high-energy particles, pointing directly at Earth are called blazars.

A supermassive black hole has been discovered by astronomers that's shooting a giant energy beam directly at Earth.

NASA telescopes reveal 35% of supermassive black holes are hidden by dust, reshaping theories about their role in galaxy ...

Scientists have detected emanating from the nucleus of a galaxy relatively close to our Milky Way flashes of X-rays gradually ...