A remarkable prediction of Einstein's theory of general relativity—the theory that connects space, time, and gravity—is that rotating black holes have enormous amounts of energy available to be tapped.
General Physics
Jan 13, 2021
5
3010
Halloween is a time to be haunted by ghosts, goblins and ghouls, but nothing in the universe is scarier than a black hole.
Astronomy
Oct 30, 2020
7
152
A team of gravitational wave researchers led by the ARC Center of Excellence for Gravitational Wave Discovery (OzGrav) report that when two black holes collide and merge, the remnant black hole "chirps" not once, but multiple ...
Astronomy
Oct 7, 2020
27
562
In 2019, the Event Horizon Telescope Collaboration delivered the first image of a black hole, revealing M87*—the supermassive object in the center of the M87 galaxy. The team has now used the lessons learned last year to ...
Astronomy
Sep 23, 2020
6
5846
Like most galaxies, the Milky Way hosts a supermassive black hole at its center. Called Sagittarius A*, the object has captured astronomers' curiosity for decades. And now there is an effort to image it directly.
Astronomy
Jun 12, 2020
22
1800
The first confirmed heartbeat of a supermassive black hole is still going strong more than ten years after first being observed.
Astronomy
Jun 9, 2020
17
3110
Last April, the Event Horizon Telescope (EHT) sparked international excitement when it unveiled the first image of a black hole. Today, a team of researchers have published new calculations that predict a striking and intricate ...
Astronomy
Mar 18, 2020
154
11286
Echoes in gravitational wave signals suggest that the event horizon of a black hole may be more complicated than scientists currently think.
Astronomy
Jan 22, 2020
27
6343
Material falling into a black hole casts X-rays out into space—and now astronomers have used the echoes of this radiation to map the dynamic behavior and surroundings of a black hole itself.
Astronomy
Jan 21, 2020
8
1051
The 347 scientists who collaborated to produce the world's first image of a black hole were honored Thursday with the Breakthrough Prize in Fundamental Physics, winning $3 million dollars for what is known as the "Oscars ...
Astronomy
Sep 5, 2019
29
10746
