A black hole 30 million times the mass of the sun has produced winds one-fifth the speed of light, stunning scientists.

Smaller black holes tend to attract less material, making them naturally dimmer. Chandra would miss many of these faint ...

The European Space Agency said that the black hole inside the spiral galaxy NGC 3783 has the mass of 30 million suns.

Omega Centauri dominates the southern sky as the Milky Way's largest and brightest globular cluster, a dense sphere ...

Intermediate mass black holes (IMBH), if they exist, have between about 100 and 1,000 solar masses, placing them in between ...

Astronomers have observed a star wobbling in its orbit around a ravenous supermassive black hole that is ripping it apart and ...

Supermassive black holes are the monsters of the universe, so it is perhaps only fitting that astronomers discovered one of ...

What could force a supermassive black hole (SMBH) out of its host galaxy? They can have hundreds of millions, even billions ...

New Chandra X-ray study finds many dwarf galaxies may not host central massive black holes, challenging long-held assumptions about galaxy formation and black hole origins ...

A sudden X-ray flare from a supermassive black hole in galaxy NGC 3783 triggered ultra-fast winds racing outward at a fifth the speed of light—an event never witnessed before. Using XMM-Newton and ...

Scientists say they detected the largest-ever merger of two black holes, forming one that is 225 times the mass of the sun, adding that the new discovery "pushes the limits of" how astronomers ...

NASA has visualized the cataclysm, which is thought to have caused a mysterious eruption of gamma rays captured by telescopes ...