Scientists think a new framework for quantum gravity could offer clues about a mysterious 5th fundamental force of nature.

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The original version of this story appeared in Quanta Magazine. When it comes to understanding the fabric of the universe, most of what scientists think exists is consigned to a dark, murky domain.

New claims challenge inconsistencies in one of the foundational principles of physics. Albert Einstein postulated in his 1905 ...

For more than a century, gravity has been the stubborn outlier in physics, resisting every attempt to merge Einstein’s smooth space-time with the jittery world of quantum mechanics. A new wave of ...

This video explores why gravity is far stranger than the simple force most people imagine. It breaks down how gravity is ...

Just over a week ago, European physicists announced they had measured the strength of gravity on the smallest scale ever. In a clever tabletop experiment, researchers at Leiden University in the ...

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 ...

Big G, gravity, is the oldest fundamental constant in physics and the least clearly defined. One scientist has spent a decade attempting to crack the mystery.

There are certain physical phenomena we take for granted, like gravity tugging us to down to the Earth, or the refraction of light coloring the sky blue. INVERSE IS COUNTING DOWN THE 20 STORIES THAT ...

Taken from the 25th anniversary issue of Physics World, this article examines one of the five biggest unanswered questions in physics as selected by the magazine’s editors The incompatibility 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 ...