The true nature of mysterious fast radio bursts (FRBs) may not have been revealed after all.
Astronomers have found a monster black hole, some 17 billion times more massive than the sun, in a modestly sized galaxy, raising suspicions that supermassive black holes may be much more common than originally thought.
The device briefly made contact with ground crews but has since disappeared.
Astronomers have observed a supermassive black hole in a distant quasar and made a stunning discovery -- it's spinning one-third the speed of light.
From the brightest supernovae to the blackest of holes, space sure knows how to provide extremes. But, it's not as easy as just taking a look to decide which objects are how bright or dark. DNews crunches the numbers.
The pair of black holes the set off the first detection of gravitational waves through space may have been spawned by the death of a single, massive star.
Black hole theoretical physicist Stephen Hawking has some thoughts on the discovery of gravitational waves.
We now live in a universe that we know is humming with gravitational waves -- why is that important?
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