A new recipe for gravity could help solve some of the universe's greatest mysteries. It suggests that the concept of "quantum gravity" could arise from entropy, possibly solving puzzles put forth ...

General relativity is an astonishingly beautiful theory, and grappling with why it disagrees with quantum mechanics is a joy, ...

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Unfortunately, these theories don't complement one another. General relativity, which describes how gravity works, implies a smooth and flowing universe of warps and curves in the fabric of spacetime.

If we were living in a computer simulation, would we be able to tell we were living in a computer simulation? It's a question ...

Besides quantum theory, general relativity is one of two pillars of modern physics – our working theory of gravity and of the very large, of planets, galaxies and the universe as a whole.

In the early 20th century, Albert Einstein’s theory of general relativity revolutionised our understanding of gravity, but did it truly replace Isaac Newton’s timeless laws? Newton’s law of ...

The problems of gravity and acceleration would not go away. After thinking about the problems for 10 years, he published the general theory of relativity. In it, he suggested that gravity is not a ...

It took Einstein 10 years to make the theory work for gravity too, which is how general relativity gets its name. The theory is a series of equations defined by Einstein. These equations combine ...

The European Space Agency has launched two atomic clocks on a SpaceX rocket to the ISS to test Einstein's theory of ...

It is called a black hole, because it acts like an ideal black body, as it reflects no light. According to the theory of ...