Active galactic nuclei are supermassive black holes at the center of certain galaxies. As matter falls into these black holes, enormous amounts of energy are released, making active galactic nuclei, or AGN,

Researchers found far more hidden black holes than previously known, indicating plenty of behemoths lurking in thick clouds of gas and dust.

Sagittarius A* is the supermassive black hole at the center of the Milky Way. As supermassive black holes go, it is fairly quiet. It’s not creating any galaxy-wide tantrums that should worry us. It does flare up though,

Using the MIRI instrument onboard the James Webb Space Telescope, an international team of scientists made the first-ever detection of a mid-IR flare from Sagittarius A*, the supermassive massive black hole at the heart of the Milky Way.

A new study suggests more supermassive black holes may be lurking in the universe than previously thought. Astronomers from the University of Southampton have discovered that 35 per cent of these enormous entities—some of which are billions of times heavier than the sun—remain undetected.

At the center of almost every galaxy, there is a supermassive black hole. Well, astronomers think it’s every galaxy, but it is a difficult claim to confirm. Not because there might be many exceptions – the difficulty lies in the fact that many black holes are so well hidden that we wouldn’t know they are there.