General relativity, also known as Einstein's theory of gravity, is a geometric theory of gravitation published in 1915. It's the accepted description of gravitation of macroscopic objects in modern physics. General relativity generalizes special relativity and refines Newton's law of universal gravitation, providing a unified description of gravity as a geometric property of space and time, or four-dimensional spacetime. The theory states that the observed gravitational effect between masses results from their warping of spacetime. Gravity isn't just what keeps us grounded — it's been shaping the universe since its earliest days.
General relativity explains gravity based on the way space can 'curve', or associates the force of gravity with the changing geometry of space-time. Massive objects cause a distortion in space-time, which manifests as gravity. A new mathematical object, the Alena Tensor, could reconcile curved space-time (general relativity) and flat space-time (quantum mechanics) by transforming curved space-time into a flat model while retaining essential physical properties. General relativity has astrophysical implications, including the prediction of black holes—regions of space in which space and time are distorted in such a way that nothing, not even light, can escape from them.
