Einstein's General Relativity

Einstein's General Relativity describes gravity not as a force but as the curvature of spacetime caused by mass and energy. Massive objects like stars and planets warp the fabric of spacetime around them, and this curvature directs the movement of other objects, which appear to be attracted by gravity. Imagine a heavy ball placed on a rubber sheet causing it to bend; smaller balls roll towards the large one because of this curvature. This theory explains phenomena such as black holes, gravitational waves, and the orbit of planets, fundamentally changing our understanding of how the universe works.