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 ...

"It is larger than the size of most anything to which it might be compared." The universe's largest structure, the Hercules-Corona Borealis Great Wall, was already a challenge to explain with ...

These findings resolve a conflict between observations and models of the universe’s evolution while revealing that black holes at galaxy centers may eject gas much farther than expected—up to five ...

Why matter dominates over antimatter in our universe has long been a major cosmic mystery to physicists. A new finding by the world's largest particle collider has revealed a clue.

None of the currently accepted models of the universe account for any overall spin. Instead, they describe it as expanding uniformly in all directions. However, these models run into trouble with the ...

The most widely accepted theoretical model, the Lambda/Cold Dark Matter model (ΛCDM), says the universe is growing at 67-68 km/s/Mpc. But what astronomers see through their equipment is a little ...

According to current models, the universe is expanding evenly in all directions, without any sign of rotation. This view aligns well with most astronomical observations. However, it doesn’t explain ...