Jun 10 2024 4 mins
At its core, gravity is the attractive force that exists between all objects with mass. This force is what keeps planets in orbit around stars, holds galaxies together, and causes objects to fall to the ground on Earth. It was first mathematically described by Sir Isaac Newton in the 17th century, who formulated the law of universal gravitation. According to Newton, every mass exerts an attractive force on every other mass, with the force being directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.