General Relativity Experimental Tests

General relativity, Einstein’s theory of gravity, has been tested through several key experiments. These include observing how light from distant stars bends when passing near the Sun (gravitational lensing), which matches predictions. The precise orbit of Mercury also aligns with relativistic calculations. The detection of gravitational waves—ripples in spacetime caused by massive cosmic events—by LIGO confirms another aspect. Additionally, time runs slightly faster or slower depending on gravitational strength, proven by experiments with atomic clocks at different altitudes. Together, these tests support general relativity as a highly accurate description of gravity and spacetime.