Planck data hint that gravity could weaken slightly on the universe’s largest scales, but stronger evidence is still needed.

Add Yahoo as a preferred source to see more of our stories on Google. The nearby Andromeda galaxy with older stars highlighted in blue. A new theory of quantum gravity could help explain why more ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration shows matter rushing forward from a singularity at the dawn of time during the Big Bang. | Credit: Robert Lea ...

A group of researchers at the University of Waterloo and the University of British Columbia have discovered a potential "cosmic glitch" in the universe's gravity, explaining its strange behavior on a ...

Theoretical physicists have long been trying to devise a complete theory of gravity that would also account for quantum mechanics phenomena, as existing models do not. Such a theory could collectively ...

The Sun is not nailed to the center of the solar system. It moves, wobbles, and traces a small loop through space, tugged by the combined gravity of every planet in orbit around it. Yet the whole ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. NASA has responded again to debunked claims that Earth will lose ...

TWEAKING gravity cannot explain why NASA’s twin Pioneer spaceships are drifting off course as they fly across the solar system. Launched in the early 1970s, the Pioneer 10 and 11 probes are ...

Spacecrafts don’t just rely on rockets—they use planets to pick up speed! Spacecrafts don’t just rely on rockets—they use planets to pick up speed! It’s called a gravity assist, and it’s one of the ...