Merging neutron stars are excellent targets for multi-messenger astronomy. This modern and still very young method of ...

On May 29, 1919, a total solar eclipse helped to prove Albert Einstein's theory of general relativity. Einstein's theory ...

Here we explore what the theory of general relativity is and how it affects space-time. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

In a new Physical Review Letters study, researchers have successfully followed a gravitational wave's complete journey from ...

Black hole and Big Bang singularities break our best theory of gravity. A trilogy of theorems hints that physicists must go ...

Albert Einstein's theory of general relativity—which explains gravity as the product of the distortion of space and time—may not be universally applicable. This is the conclusion of physicists ...

Here’s how it works. Einstein's theory of gravity — general relativity — has been very successful for more than a century. However, it has theoretical shortcomings. This is not surprising ...

In 1916, Einstein announced his holy grail theory of general relativity. Basically, Einstein realized that space is much more than the "space" we live in and that time transcends the clocks we've ...

For over a century, quantum mechanics and Einstein’s general relativity have stood as the cornerstones of modern physics, yet their unification remains one of science’s greatest challenges.

This shouldn’t be too surprising. After all, general relativity has a good track record of theoretically predicting aspects of the universe well before they are discovered including black holes ...

Dark matter, dark energy, the Hubble tension: underpinning these theories is Einstein’s general theory of relativity, which treats space and time as a unified “spacetime” and considers ...