Known as Sgr A* – pronounced “Sagittarius A star” – the supermassive black hole is four million times the mass of the sun and is known to exhibit flares that can be observed in multiple wavelengths, ...

A team of scientists including the University of Toronto's Bart Ripperda and Braden Gail - assistant professor and graduate student, respectively, at ...

In an article published in Physical Review Letters on Thursday, scientists carried out an innovative study testing the ...

You may get radiation therapy at one or more of these locations. Your radiation oncology team will tell you where to go. Our centers feature state-of-the-art equipment so your doctor and care team can ...

North Liberty’s best kept secret looks like a giant satellite dish nestled in a wooded area between North Liberty and ...

Black holes that have been obscured by clouds of dust still emit infrared light, enabling astronomers to spot them for the ...

Galactic nuclei images reveal how supermassive black holes interact with their surroundings using infrared telescopes.

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

Active galactic nuclei (AGN) are among the most energetic phenomena observed in the universe. These luminous objects, powered ...

Researchers have found there are many more black holes in the universe than once thought. (Credit: WikiMedia Commons) Most ...

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

As reionization occurred, radiation emitted by the first stars and black holes cleared out the haze of neutral hydrogen. | ...