One of the biggest challenges in modern physics is uniting quantum mechanics and general relativity. A new experiment may ...

What happens after death? This age-old question has intrigued humanity for centuries, with countless theories from religious, ...

In 1919, a total solar eclipse allowed scientists to confirm Einstein’s theory of general relativity by observing how the sun ...

A new study published in the journal PRX Quantum demonstrates how a network of quantum computers employing optical clocks can ...

The LIGO Hanford Observatory near the Tri-Cities and its twin in Louisiana detected ripples of time and space passing through Earth from the most massive collision of black holes ever observed, a ...

While general relativity is the best model we have of gravity and the universe on large scales, and quantum physics is the best description of the sub-atomic, these theories won't unify.

"God does not play dice." This famous remark by Albert Einstein critiqued the probabilistic nature of quantum mechanics.

Decades ago, a renegade physicist suggested that gravity isn't so much a force as just a byproduct of the universe's tendency ...

The Trump administration has proposed closing either the LIGO Hanford observatory in WA or its twin in Louisiana.

Scientists propose using quantum-entangled clocks to test how gravity affects quantum mechanics in curved spacetime.

Two colossal black holes among the most massive ever seen collided in deep space, creating gravitational waves that rippled across the cosmos and shook the foundations of astrophysical theory.

Using the Hubble Space Telescope (HST), astronomers have observed a nearby ultra-diffuse galaxy designated F8D1. The new ...