Einstein’s general theory of relativity can be summed up in just 12 words: “Space-time tells matter how to move; matter tells space-time how to curve”. But this short description from the ...

If gravity arises from entropy, scientists could unite Einstein's general relativity with the quantum realm while shedding light on dark matter and dark energy.

Einstein's formula found that an object that has ... The cosmological constant is a term in Einstein's equations of General ...

This theory tries to reconcile Einstein’s theory of general relativity (which sees gravity as a warping of spacetime) with quantum theory (which views the universe as being made of extremely ...

After thinking about the problems for 10 years, he published the general theory of relativity. In it, he suggested that gravity is not a force, as Newton had believed, but the result of a ...

On 25 November 1915, Albert Einstein presented his general theory of relativity at the Prussian Academy of Sciences. This theory is still considered to be the most important idea in modern physics.

While general relativity describes gravity, quantum theory deals with the other three forces. This creates a problem: "As early as the 1930s, it was recognized that the two theories do not fit ...

But why do we care? Black holes are cast-iron predictions of general relativity, Einstein’s peerless theory of gravity, and yet they stretch it to breaking point. General relativity says that ...