Is time something that flows — or just an illusion? Exploring space-time as either a fixed “block universe” or a dynamic fabric reveals deeper mysteries about existence, change, and the very nature of ...

Hawking’s theory for the first time in history. The observations by gravitational waves reveal that black holes do in fact ...

Scientists have captured the clearest signal yet of a black hole collision, confirming Stephen Hawking's theory.

Two black holes collided 1.3 billion light years from Earth, creating a 'ringing,' which in turn allowed astrophysicists to ...

Mathematical quirks of our universe have led some cosmologists wonder whether the cosmos was actually born in a black hole.

Since that day, LIGO — composed of two highly sensitive laser interferometers located in Hanford, Washington and Livingston, ...

Ten years after scientists first detected gravitational waves emerging from two colliding black holes, the LIGO-Virgo-KAGRA ...

From early experiments with lanterns to Einstein’s revelations about space and time, the speed of light has proven to be far ...

The theory says two black holes that merge will have the same or larger surface area than what the pair started out with.

Astronomers detected in unprecedented detail a collision between two black holes. Their observations confirm predictions made ...

"GW250114 is the loudest gravitational wave event we have detected to date; it was like a whisper becoming a shout." ...

Theoretical physicists believe math shows the possibilities of a fourth dimension, but there’s no actual evidence—yet. Albert ...