The Hundred-year Quest For Gravitational Waves —in Pictures : Nature News & Comment
Gravity is a distorsion in space and time
After formulating his general theory of relativity, which holds that gravity is a distortion in space and time around massive objects, Albert Einstein (pictured) pondered what would happen when a mass is shaken. His answer, published a year after the theory, was that space-time would ripple and produce ‘gravitational waves’ moving outward from the mass at the speed of light