“The one sentence statement of general relativity is that ‘gravity is the curvature of spacetime,’” explains Dr. Sean Carroll, assistant professor of physics at the University of Chicago. “Really, the ...

The video explains how Albert Einstein moved from special and general relativity to a search for a single framework tying ...

Why do clocks run at different speeds on the ground and in space? Why do distant galaxies sometimes appear as beautiful rings ...

In November 1915, Albert Einstein presented his theory of general relativity to the Prussian Academy of Science, positing that gravity is a geometric property of space-time. In other words, space-time ...

Just after the MESSENGER flyby of Mercury a reader asked me an interesting question: do MESSENGER's navigators have to take relativistic effects into account when they plan MESSENGER's trajectory?

Einstein's theory of relativity just got put to the test by the lightest binary neutron star system ever discovered.

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 ...

This November, Einstein’s theory of general relativity will celebrate its 100th anniversary. Despite its advanced years, Einstein’s soon-to-be centenarian theory is holding up remarkably well. That’s ...

The calculation of Mercury’s orbit is being tweaked — for a second time. And it’s all thanks to Albert Einstein. Before the famous physicist came up with his theory of gravity, known as the general ...

Einstein's theory of general relativity describes gravity as the bending of spacetime, a mathematical model that combines ...

One hundred years ago this month, an obscure German physicist named Albert Einstein presented to the Prussian Academy of Science his General Theory of Relativity. Nothing prior had prepared scientists ...

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.