Space is expanding. In other words, space is moving, or changing.While we continue to think of relativity in terms of masses moving with regard to themselves in space, thereby generating time, there is a limitation to this. Since space is moving. Suppose a body A and a body B hover in space such that their movement is governed by the movement of space only. Than we have model in here where two things can happen. 1. A and B can move further from each other as space expand 2. A and B can move coser to each other as space contract How do we perceive this kinds of movement? Do they still obey relativity - both SR and GR? We must consider the fact that at some point SR and GR must relate to energy either expended or consumed to obtain a specifc relativistic observation of the universe. In here, no energy is expended or consumed by either A or B to bring them together or remove them further apart. How can we relate A and B to the 'dynamic' space instead of each other?