In his book, “Einstein's Legacy”, Julian Schwinger explained that gravitational redshift is really the blue shift of the massive object that absorbs the photon. Photons do not change energy when moving in a gravity well, but massive objects do change their energy, size, speed, and mass when moving in a gravity well. Likewise velocity redshift can only be adjusted by adjusting the speed of the massive objects. If we extend this concept to galactic redshift and postulate that the apparent redshift of the photon is really a blue shift of the absorbing atom, then it implies that photon energies never change after a photon is emitted and it implies that all massive objects in the universe are getting smaller, getting a faster rate of time, and acquiring additional energy as a function of time. It is proposed that the universe can be modeled as a 4D elastic shell similar to a balloon, where the shell is comprised of energy density and where the surface forms our normal 3D coordinates. When the Universe contracts the galaxies and stars in the universe would contract in a manner similar to what they would if they were drawn on the balloon. This model indicates that the energy for contracting the objects in the Universe comes from the elasticity of space, which gets relaxed as the Universe contracts.