Gravity is a fundamental force in physics that attracts objects toward the center of the Earth, or any other massive body. Isaac Newton’s law of universal gravitation explains how every object with mass exerts an attractive force on other objects. The strength of gravity depends on the mass of the objects and the distance between them. On Earth, gravity gives weight to physical objects and causes objects to fall when dropped.
Gravity also plays a critical role in the movement of planets, stars, and galaxies in space. Without gravity, objects in the universe would not stay in orbit or move in predictable paths. Albert Einstein’s theory of general relativity expanded our understanding of gravity, describing it as the warping of space and time around massive objects.