Sgr A*, at the heart of the Milky Way and clocking in at 4.3 million solar masses, is the closest supermassive black hole we have access to. It's also on the quiescent end of the activity scale, which ...

Even more surprisingly, the black hole that powers the quasar from which this jet erupts, designated J1601+3102, is relatively small. (For a quasar-powering supermassive black hole, that is.

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.

Astronomers have now produced the highest resolution direct images ever taken of a supermassive black hole in the infrared, using the Large Binocular Telescope Interferometer. Active galactic ...

And every single one of those dots would be an accreting supermassive black hole." The universe could be packed with many more monstrous black holes ravenously feeding on their surrounding ...

Rapid X-ray oscillations detected near the innermost orbit of a supermassive black hole could indicate the presence of a nearby orbiter such as a white dwarf ...

WASHINGTON, Jan 14 (Reuters) - Scientists have detected emanating from the nucleus of a galaxy relatively close to our Milky Way flashes of X-rays gradually increasing in frequency that seem to be ...

Scientists have been actively observing Sagittarius A* (Sgr A*)—a supermassive black hole roughly 4 million times the mass of the sun— since the early 1990s. Sgr A* regularly exhibits flares ...

Every galaxy has a supermassive black hole at the center. Some of them are considered active while others are inactive, depending on how quickly material is falling onto them, Isbell said.