Although we know that supermassive black holes (millions of times the mass of our sun) lurk at the center of most galaxies, ...

Learn why a black hole is becoming active and why experts still can't explain the source of its regular, periodic pattern of ...

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

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

A supermassive black hole, inactive so far, has awakened in the galaxy SDSS1335+0728, American space agency NASA has revealed ...

A massive black hole at the heart of a galaxy in the Virgo constellation is waking up, shooting out intense X-ray flares at ...

Astronomers have used space-based telescopes, including NASA's Swift X-ray observatory, to watch a monster black hole spring ...

Artist’s impression of the accretion disc around the massive black hole Ansky and its interaction with a small celestial object ...

Astronomers are investigating the longest and most energetic bursts of X-rays seen from a newly awakened black hole. Watching this strange behavior unfold in real time offers a unique opportunity to ...

Although we know that supermassive black holes (millions of times the mass of our Sun) lurk at the centre of most galaxies, their very nature makes them difficult to spot and study. In contrast to ...