For over 100 years, two theories have shaped our understanding of the universe: quantum mechanics and Einstein’s general ...

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 ...

It stands among the most famous theories ever created, but the general theory of relativity did not spring into being with a single, astonishing paper like the special theory of relativity in 1905.

According to Einstein's theory of general relativity, gravity results from how mass warps space and time. The greater an object's mass, the stronger its gravitational pull. Scientists have largely ...

Einstein published a new theory of gravity—the theory of general relativity—in 1915. It would transform our understanding of physics forever. But it’s far from perfect.

The general theory stands alongside quantum theory as one of the great pillars of 20th-century physics, but where quantum theory had a long and difficult birth, with multiple modifications and many ...

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 ...

Einstein announces the general theory of relativity 1915. Albert Einstein had described the special theory of relativity in 1905. The result of Einstein's thinking about light, ...

This week's 100th anniversary of Albert Einstein's general theory of relativity is a geeky cause for celebration, but the concept also faces a tough test. Toggle search box Toggle navigation.

And this wasn't even his first revolutionary idea. The Special Theory of Relativity came 10 years earlier, in 1905, when Einstein was a patent clerk in Bern, studying patents for timekeeping devices.

First proposed a century ago, Albert Einstein's theory of relativity got yet another boost this week, thanks to giant telescopes that peered at a huge black hole at the heart of our galaxy.