Gravity is supposed to be the most familiar force in nature, yet at the deepest level it remains the least understood. A bold ...

For more than a century, modern physics has rested on two towering frameworks that do not quite agree with each other.

We experience the flow of time because it’s a natural outcome of the basic laws of physics. But we may need to build a whole ...

The accelerating expansion of the universe is usually explained by an invisible force known as dark energy. But a new study ...

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 ...

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 ...

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 ...

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 ...

The standard explanation has been dark energy, an invisible force added into the equations to make the math work. But now, an ...