The slower growth of gravitational wells and the accelerating expansion might share the same underlying cause.” In so many ...

"This work is a step toward understanding how quantum mechanics and gravity work together, a major unsolved problem in ...

For decades, he hid his time-travel obsession. Now, he is challenging the assumptions that underpin our universe.

Dark matter pulls the universe and dark energy pushes, both mysteries that endure. And the discovery that a majority of the ...

The “Bell test” was devised in the 1960s to uncover what’s going on in the quantum world, but it continues to be relevant today, says Karmela Padavic-Callaghan ...

Earlier this year, new research suggested a potential solution to one of the most troubling aspects of modern physics — that ...

Buried in Albert Einstein’s mail one spring day in 1953 lay a letter from an ordinary mortal, a 20-year-old high school dropout named John Moffat. Two more disparate correspondents would be hard to ...

A generalization of geometry solves the riddle When Albert Einstein formulated his theory of gravity, he used mathematics known as pseudo-Riemannian differential geometry.

Albert Einstein, in 1905, presented the revolutionary idea of light quanta of energy which equals ħw, where ħ is reduced Planck's constant.