"We would need to consider the possibility that the source was created (or trapped as a primordial black hole) by a highly advanced technological civilization," Harvard's Avi Loeb writes.

One of the most perplexing discoveries in modern astronomy has been finding supermassive black holes, some weighing billions ...

Caltech simulations reveal what happens when black holes collide with neutron stars—violent cracking, intense shock waves, ...

The universe seems to be spinning, and that could explain what dark energy is and why it's weakening while revealing our ...

The James Webb Space Telescope has observed a surprising alignment in the spin directions of ancient galaxies, challenging ...

The colossal black hole lurking at the center of the Milky Way galaxy is spinning almost as fast as its maximum rotation rate ...

From this, they calculated M87*’s spin parameter, a measure of how fast a black hole is rotating. The result: 0.8 on a scale from 0 to 1, with 1 being the theoretical maximum.

Insights into Rotating Black Holes The implications of Sneppen’s findings extend beyond static black holes. All black holes rotate to varying degrees, and their spin significantly alters the ...

A bomb from a black hole would probably be the most destructive weapon in the universe. Hypothetically, it could be created by wrapping one of these cosmic monsters in mirrors and waiting for it ...

A black hole bomb – an idea first proposed in 1969 – has now been realised in the lab as a toy model made from a rotating cylinder and magnetic coils. Studying the bomb could help us better ...

Another idea, first proposed by respected physicist and mathematician Roger Penrose, is that we could extract energy from rotating black holes, also known as Kerr black holes, after Roy Kerr, who ...

Obviously, black holes aren't the only cosmic objects that rotate, but there is something very special about rotating black holes or "Kerr black holes" that isn't true for other spinning cosmic bodies ...