Researchers at the Indian Institute of Astrophysics (IIA) have pieced together a key part of the galaxy evolution puzzle, ...

"This is truly extraordinary," Itai Sfaradi of the University of California, Berkeley, said in a statement. "Never before ...

NASA's Hubble Space Telescope and NASA's Chandra X-ray Observatory have teamed up to identify a new possible example of a rare class of black holes. Called NGC 6099 HLX-1, this bright X-ray source ...

This so-called tidal disruption event is the best way to spot these middle-mass black holes. A rogue, middle-mass black hole has been spotted disrupting an orbiting star in the halo of a distant ...