Thomas Mulligan explains that time is not universal, illustrating how Einstein's theory of general relativity dictates that ...

A link between particle physics and gravity equations, called the double copy, applies to Hawking radiation, creating a new ...

The only difference with black holes is that they are incredibly dense, so that if another object gets closer than the event ...

The biggest open problem in the foundations of physics is that Einstein’s theory of gravity, General Relativity, does not ...

One of the best-performing models in cosmology is also one with the least physical rationale behind it. Columnist Leah Crane ...

Physicists are rethinking one of quantum mechanics’ biggest puzzles: how fuzzy possibilities become definite reality. New ...

Physicists have found that certain quantum collapse models, if correct, imply an inherent uncertainty in time itself, likely ...

If Einstein hadn't tried to solve the mysteries of the universe, we'd still be using paper road maps to find our way home.

Cutting-edge atomic clocks may soon reveal a strange possibility: time itself behaving like a quantum object, existing in ...

Prof Stephen Hawking’s closest collaborator explains emerging evidence supporting the cosmologist’s final thoughts on time ...

Merging black holes and neutron stars have unusual oval orbits prior to colliding and merging, which challenge the laws of ...

A new study links the universe’s expansion to quantum topology, suggesting that hidden mathematical structures may stabilize ...