By Will Dunham WASHINGTON, Feb 5 (Reuters) - Scientists are observing the behavior of a supermassive black hole that is ...

Astronomers propose that an ultra-dense clump of exotic dark matter could be masquerading as the powerful object thought to anchor our galaxy, explaining both the blistering speeds of stars near the ...

Observing such an explosion could unlock secrets of the universe. Like cracking a cosmic piñata, an exploding PBH would ...

Inside an incredibly bright cluster of galaxies, a long-dormant supermassive black hole has come back to life. Radio images captured a one-million-light-year-long stream of star-forming particles and ...

There is a lot we have yet to understand about the center of the Milky Way—could it be due to a mass of invisible dark matter?

Gigantic black holes lurk at the center of virtually every galaxy, including ours, but we've lacked a precise picture of what ...

Scientists observe a supermassive black hole producing an unprecedented, years-long jet after destroying a star, creating one ...

The sharpest black hole collision ever detected just gave Einstein another win—and raised hopes that the next one might ...

Astronomers have traced the origin point of a jet of material that is thousands of light-years long emanating from the supermassive black hole M87* ...

Astronomers have witnessed something that no one believed possible: a black hole ripping apart a star not at the center of a galaxy, but far from it. More amazingly, the event’s radio waves pulsed and ...

When scientists discovered an enormous black hole thousands of light-years from where it ought to be in space, they knew they had a cosmic oddity on their hands. NASA's Hubble Space Telescope showed a ...