Ever wondered what gravity really is? Is it a force, or is there more to it than we know? In this video, we break down the theory of general relativity, revealing how mass and energy bend the fabric ...

In 1915, Albert Einstein presented his theory of general relativity, ... Wrong assumptions and dead ends are all contained in the pieces of aged graph paper.

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 ...

The name is an homage to predictions about space-time made in Einstein's theory of relativity. (Image credit: ESA/Hubble & NASA/S. Jha/Acknowledgement: L. Shatz) Time to test general relativity.

Albert Einstein’s general theory of relativity has been wildly successful at describing how gravity works and how it shapes the large-scale structure of the universe. It’s summed up in a saying by the ...

In 1905 Einstein discovered the special theory of relativity, establishing the famous dictum that nothing—no object or signal—can travel faster than the speed of light. And therein lies the rub.