Learn how researchers used Einstein’s theory of general relativity to create the most accurate simulations to date.

Einstein's theory of general relativity, published in 1916, built upon his earlier work, including special relativity and the mass-energy equivalence, both published in his "Annus Mirabilis" in 1905.

If you're going to Mars you'd best take along a jar of anti-aging cream because while you're there you're going to age faster ...

Learn how Albert Einstein’s theory reveals that time on Mars runs faster than on Earth — and why that tiny shift matters for ...

The MICROSCOPE mission tested the weak equivalence principle with free-falling objects in a satellite. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. General relativity has withstood perhaps its toughest challenge to date. The theory, which Albert ...

The supermassive black hole at the center of the Milky Way is the most extreme astrophysical object located within a million light-years of Earth. With an estimated four million solar masses, it's the ...

In 1915, Albert Einstein put forth a new theory of gravity: General Relativity. Instead of every mass in the Universe instantly reaching across to every other mass and exerting an attractive force, ...

More than a century has passed since Albert Einstein gave us general relativity, and scientists are still testing the mind-bending theory. In the latest test, an international team of astronomers used ...

Einstein's theory of general relativity has passed its toughest test with flying colors, a new study reports. General relativity, which Einstein proposed in 1916, holds that gravity is a consequence ...