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

The speed of light, c, is not just a very large number. In modern physics it is a structural constant: the conversion factor ...

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 ...

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

A recently discovered black hole merger is proving correct theoretical predictions made by Albert Einstein and Stephen ...

Einstein’s theory of special relativity tells us that for a moving object, time passes more slowly than for a stationary ...

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

Celebrating 10 years since the first detection of gravitational waves coming from colliding black holes, LIGO has confirmed ...

Ten years after LIGO’s historical detection of gravitational waves, the project is cracking black hole mysteries at an ...

Spacetime ripples from a black hole collision across the cosmos have confirmed weird aspects of black hole physics ...