They are objects so massive they warp space and time to a point that even light cannot escape their pull, making them invisible. In the past, astronomers ... black hole, you'll see radio flares ...

Astronomers have used space-based telescopes, including NASA's Swift X-ray observatory, to watch a monster black hole spring to life with powerful X-ray eruptions.

An international team of astronomers has announced the discovery of a spiral galaxy with a supermassive black hole at its center, producing massive radio jets six million light years across ... jets ...

He worked on computer simulations of the radiation near black holes ... the light and seasonal conditions would be virtually identical, and he and hundreds of Adams fans ventured to the spot ...

A team of astronomers at the Space Telescope Science Institute, working with one colleague from the University of St Andrews' ...

The quasi-periodic eruptions of X-rays from a black hole 300 million light-years away are unlike any researchers have ever ...

Researchers have spent the past few years watching a black hole re-awaken roughly 300 million light-years away from Earth. And what they’ve documented challenges prevailing theories about black hole ...

"This rare event provides an opportunity for astronomers to observe a black hole's behavior in real time," said astronomer Lorena Hernández-García.

The black hole at the heart of SDSS1335+0728—a distant galaxy 300 million light-years away—was found ... study published in the journal Nature Astronomy. The first bursts appeared in late ...

While solitary black holes should be common, they are hard to find. The one in Sagittarius revealed itself when it passed in front of a dim background star, magnifying the star’s light and slowly ...