Meanwhile general relativity has never been found lacking. Its prediction that very dense agglomerations of mass could warp space-time so much that not even light could escape from it has proved ...

Einstein’s big idea was the strange concept of space-time - the notion that space and time are woven together, and become distorted by objects with mass. Ten years before general relativity ...

Astronomers also use gravitational lensing to map dark matter — an invisible substance that makes up about 85% of the universe's mass ... Einstein's theory of relativity predicted the presence ...

General Relativity Quantum mechanics and general relativity ... a groundbreaking experiment aimed at detecting fluctuations in mass over time. For instance, consider a 1kg mass – the standard ...