Astronomers spotted the ultramassive black hole inside the Cosmic Horseshoe, an equally gargantuan galaxy so powerful that it ...

Chandra has been watching the skies since its 1999 launch. It detects X-rays, a type of light invisible to our eyes. These ...

Astronomers have found one of the heaviest black holes ever measured, sitting in the heart of a distant galaxy and coming in well above what scientists would normally expect for a galaxy of its size.

It's August, which means Hot Science Summer is two-thirds over. This week, NASA released an exceptionally pretty photo of ...

The Hubble Space Telescope has captured the best picture yet of a high-speed comet visiting our solar system from another ...

"The biggest surprise of all was that the black hole was not located inside either of the two nuclei but in the middle. We ...

Astronomers believe they have spotted an elusive intermediate-mass black hole shredding a distant star, and they have ...

Astronomers may have caught a supermassive black hole in the act of forming inside a uniquely shaped galaxy. Astronomers ...

“The gas spans the entire width of the system and was likely shocked and compressed at the collision site,” they and their ...

NASA's telescopes and spacecraft have captured stunning images showcasing the universe's beauty and complexity. These visuals ...

NASA has unveiled a spectacular series of nine cosmic images captured by the Chandra X-ray Observatory, released on July 23, ...

NASA’s Chandra X-ray Observatory and Hubble Space Telescope have been used to study a cluster of stars, nicknamed “Nikhuli," that may be acting as a black hole "delivery system." Credit: NASA ...