Right now Quote by Henning Genz

““The interpretation of apparent long-distance action by means of continuously propagating effects was vigorously asserted by Isaac Newton. In his wake, the interpretation of all forces or propagation of information over long distances in terms of hidden short-distance effects with finite velocity of propagation is one of the most challenging tasks of fundamental research in physics. We know that oscillations of charges in some given location build up fields propagating in space, causing electric and magnetic action to spread with the velocity of light. The general theory of relativity tells us that masses deform space and thereby cause other masses to move in appropriate directions. The deformation of space, too, spreads from point to point with the velocity of light by means of waves; these gravitational waves also have their carrier bosons, called gravitons. Their finite, if very large, velocity of propagation implies that it is not the Sun's existence right now that makes Earth follow a curved orbit right now; rather, it is the Sun's emission of gravitons eight minutes ago that keeps Earth from moving in a straight line right now. Photons and gravitons allow us to understand, at least in principle, how electromagnetic and gravitational forces spread from point to point. The same goes for gluons and for the W and Z bosons when it comes to the strong and weak nuclear interactions, respectively.””

— Henning Genz