An illustration of a magnifying glass. An illustration of a magnifying glass.

An illustration of a magnifying glass. An illustration of a magnifying glass.

General relativity, Einstein's theory of gravity, is a purely classical theory that describes gravity as the warping of space-time geometry by mass and energy. But attempts to blend quantum theory ...

A new physics paper takes a step toward creating a long-sought "theory of everything" by uniting gravity with the quantum world. However, the new theory remains far from being proven observationally.

This was a spectacular confirmation of Albert Einstein’s century-old theory of gravity, general relativity. The 2017 physics Nobel went to three physicists who had made decisive theoretical and ...

Credit: SciTechDaily.com A bold new quantum theory of gravity may finally bridge the long-standing rift between Einstein’s general relativity and quantum field theory. This potential “Theory of ...

The greatest name in physics since Isaac Newton devised two theories of relativity, the special theory and the general theory. Albert Einstein was born at Ulm in Germany in 1879 to a Jewish family, ...

Gravity, though vital to everything from tides to timekeeping, insists on speaking a different dialect inspired by Einstein’s theory of general relativity. That mismatch keeps physicists up at night.

This is the heart of Einstein’s special theory of relativity. Objects actually shrink in length as they speed up, and time flows differently for them than it does for someone watching from the outside ...

To understand why this matters, it helps to revisit the origin of the idea. In 1915, Albert Einstein introduced his groundbreaking theory of general relativity. Just a year later, German physicist ...