The International Space Station will host the most precise clocks ever to leave Earth. Accurate to a second in 300 million years the clocks will push the measurement of time to test the limits of the ...

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

Einstein’s general theory of relativity—the idea that gravity is matter warping spacetime—has withstood over 100 years of scrutiny and testing, including the newest test involving supermassive black ...

Astronauts aboard the International Space Station (ISS) experience the effects of time dilation as they travel at high speeds ...

Did you know that moving a clock one inch toward the ground would result in a slower tick compared to the same clock positioned higher up? Gravity doesn't just pull things; it also bends time.

Einstein's theory of general relativity describes gravity as the bending of spacetime, a mathematical model that combines three-dimensional space and time into a single, four-dimensional continuum.

Most lovers of science fiction are quick to tell you that there's a "time-honored" (pun intended) way to build a time machine - somehow get a wormhole and use it as a bridge to travel through time.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. In 1915, Albert Einstein published his pioneering theory of general ...

The accelerating expansion of the universe could be explained by modifying general relativity so that gravity has mass – or so thinks a small group of physicists. Matthew Francis reports What lies ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. It's difficult to appreciate how revolutionary of a transformation it ...

Einstein revolutionised our understanding of gravity in 1915. With gravity wave experiments and a new view of quantum theory, 2015 promises more ONE of the defining anniversaries in 2015 will be the ...