Be careful out there, astronomers: There could be a dark galaxy in our midst. In research published today in Science Advances, researchers from the Chinese National Academy of Sciences discovered ...

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

A team of astronomers at the Space Telescope Science Institute, working with one colleague from the University of St Andrews' ...

Scientists have discovered a supermassive black hole that appears to be "waking up" after being inactive for decades. The black hole at the heart of SDSS1335+0728—a distant galaxy 300 million ...

Now, astronomers are getting a close look at a black hole that is “waking up” and going from a dormant state to an active one as it starts chowing down on nearby matter. The black hole at the ...

Artist’s impression of the accretion disc around the massive black hole Ansky and its interaction with a small celestial object. (European Space Agency via Courthouse News) (CN) - Astronomers have ...

After decades of inactivity, the black hole at the galaxy's heart burst with light. Now, the cosmic monster appears to be doing something that is forcing astronomers to re-evaluate their ...