The mutual attraction of all masses in the universe. Newton’s Law of Universal Gravitation holds that every two bodies attract each other with a force that is directly proportional to the product of their masses, and inversely proportional to the square of the distance between them. This relation is given by the formula shown here, where is the force of attraction between the two objects, given the Universal Constant of Gravitation, masses and , and distance. Also stated as where is the force of gravitational attraction, the larger of the two masses, the smaller mass, and the radius of separation of the centers of the masses.