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 ...

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

A decade ago, scientists first detected ripples in the fabric of space-time, called gravitational waves, from the collision ...

GPS satellites experience time differently than we do on Earth. Without compensating for this strange effect predicted by ...

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

Gravitational Interaction, Relativistic Precession, Planetary Ephemerides, Mercury Share and Cite: Bootello, J. (2025) ...

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

Ten years ago, scientists heard the universe rumble for the first time. That first discovery of gravitational waves proved a ...

A decade after the first discovery, scientists have used these waves to find a unique merger, a massive binary system and a ...

Gravitational-wave astronomy has exploded since 2015, capturing hundreds of black hole and neutron star collisions. With ever ...

The merger of two black holes is a momentous event, revealing the wildest and most extreme configurations of space, time and ...

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