As far as supermassive black holes go, the one at the center of the Milky Way is relatively sedate. But, even in its supposed quiescent state, Sagittarius A* is prone to the occasional belch or ...

That has never been observed around a supermassive black hole before.” A paper reporting the results, co-authored by Masterson, Meyer and others, was posted to the preprint server arXiv.org in ...

Expect the unexpected In this artist’s rendering, a stream of matter trails a white dwarf orbiting within the innermost accretion disk surrounding 1ES 1927+654’s supermassive black hole. (Courtesy: ...

A cosmic mystery surrounding a black hole some 270 million light-years from the Milky Way is deepening. For years, astronomers have been perplexed by this particular supermassive black hole ...

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.

Recently, astronomers focused on a galaxy 270 million light years away, which hosts a supermassive black hole known as 1ES 1927+654. The black hole, researchers have now observed, has been ...

Active galactic nuclei (AGN) are supermassive black holes at the centre of certain galaxies. When these black holes attract matter, a quickly rotating disk of hot gas forms, releasing enormous amounts ...

Within those two years, the fluctuation period ramped up from every 18 minutes to just seven minutes – the first-ever measurement of its kind around a supermassive black hole. If this signaled ...

In this artist’s rendering, a stream of matter trails a white dwarf orbiting within the innermost accretion disk surrounding 1ES 1927+654’s supermassive black hole. Astronomers developed this ...

Here’s how it works. Astronomers have discovered a supermassive black hole that's shooting a giant energy beam directly at Earth. The cosmic juggernaut, which is about as massive as 700 million ...

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.

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 ...