In classical theories involving gravitation, the speed of gravity is the speed at which changes in the gravitational field pass on. This is the speed from which a change within the distribution of vitality and momentum of matter ends in subsequent alteration, well away, of the gravitational subject which it produces. In a more physically correct impression, the “speed of gravity” refers to the speed of an gravitational wave, which experts claim is the same speed as the speed of light (c).