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 ...

This third edition contains discoveries by astronomers that require general relativity for their explanation; two chapters on gravitational ... It includes not only the basics of general relativity, ...

Albert Einstein's theory of general relativity—which explains gravity as the product of the distortion of space and time—may not be universally applicable. This is the conclusion of physicists ...

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 ...

For the first time, a mathematical framework proves that Einstein’s theory of general relativity, which explains the ...

An international research team's new calculations of the distortion of time and space presents new challenges to predictions ...

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.