From the fall of an apple to the glow of the farthest known star, gravity quietly choreographs almost everything that happens ...

General relativity explains gravity as the distortion of space-time. Quantum mechanics explains other forces using exchanged "virtual particles." Unifying gravity with quantum mechanics is a major ...

It isn’t often that physics produces news that diverts the mainstream media from politics, crime and sports. But, now, in the space of four years’ time, physicists have twice elevated the intellectual ...

In a bold step toward solving one of science’s most puzzling problems, researchers have proposed a new way to bring gravity into the same mathematical language as the other forces of nature. While the ...

Now for the first time, this controversial theory has been tested experimentally and has held its ground. An independent study of the distribution of gravity around more than 30,000 galaxies found ...

This puzzle is known as the problem of time, and it remains one of the most persistent obstacles to a unified theory of ...

Despite decades of searching, the "dark matter" thought to hold galaxies together is still nowhere to be found. Matthew Chalmers describes how some physicists think it makes more sense to change our ...