A mysterious black hole in a distant galaxy just woke up after decades of silence—and it’s putting on a cosmic light show!

Approximately 980 million light-years away from Earth, in the center of the galaxy SDSS1335+0728 in the constellation Virgo, ...

Ansky, a once-dormant black hole, is now emitting powerful X-ray bursts, giving scientists a rare chance to study its ...

After years of observation, researchers concluded that the sudden changes in the galaxy were likely caused by its black hole ...

Indian astronomers have performed X-ray observations of an X-ray binary designated 4U 1907+09. Results of the observational ...