"Very massive stars are like the 'rock stars' of the universe — they are powerful, and they live fast and die young." ...

Gravitational waves stretch and squeeze the fabric of space and time itself. When space/time is squeezed, pulsar pulses ...

"This work is a step toward understanding how quantum mechanics and gravity work together, a major unsolved problem in ...

The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the ...

Black holes, once purely theoretical, are now observable phenomena, offering insights into the universe. Their intense ...

These black holes are the most distant and stable objects we know. Using a technique called very long baseline interferometry ...

Hubble spotted a rare off-center black hole shredding a star, revealing the first optical discovery of a wandering ...

How astronomers used gravitational lensing, a space-time trick predicted by Einstein, to detect a black hole measuring 30 billion times the mass of the sun.

Some physicists think our reality is a kind of cosmic hologram, with space, time, and gravity as manifestations of a ...

Supermassive black holes usually lurk unseen, but when an unlucky star drifts too close they ignite titanic outbursts ...

The Hubble Space Telescope has found evidence of a "wandering" black hole about 5000 light years away in the Milky Way galaxy ...

"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.