Gravity is a fundamental force of attraction that exists between all objects that have mass or energy. It pulls objects toward each other, and this invisible force is what keeps you on the ground, causes things to fall, and keeps planets in orbit around the sun

. On Earth, gravity is the force by which the planet draws objects toward its center, giving them weight. The strength of gravity depends on the mass of the objects involved-the more massive an object, the stronger its gravitational pull-and it decreases with distance between objects

. Scientifically, gravity is described in two main ways:

• Newton’s Law of Universal Gravitation: Gravity is a force acting between any two masses, proportional to the product of their masses and inversely proportional to the square of the distance between them. This classical view explains most everyday and astronomical phenomena

• Einstein’s General Theory of Relativity: Gravity is not just a force but the curvature of spacetime caused by mass. Objects move along curved paths (geodesics) in this warped spacetime, which we perceive as gravitational attraction. This theory explains extreme gravitational effects like black holes and provides a deeper understanding of gravity

Gravity is by far the weakest of the four fundamental forces in nature, yet it dominates at large scales, shaping the structure and evolution of stars, galaxies, and the universe itself

. In summary, gravity is the universal attraction between masses that governs the motion of objects from falling apples to orbiting planets and the large- scale structure of the cosmos.