The gravity quantum field is calculated in flat spacetime. The curved classical metric is calculated using the expectation ...

Researchers have developed a new quantum theory of gravity which describes gravity in a way that's compatible with the Standard Model of particle physics, opening the door to an improved understanding ...

At long last, a unified theory combining gravity with the other fundamental forces—electromagnetism and the strong and weak ...

Physicists have pulled off a cosmic simulation that cracks open one of the universe’s most mind-bending mysteries: are we ...

The Hubble Space Telescope celebrates 35 years of groundbreaking discoveries, stunning imagery, and a lasting impact on ...