Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>So earth moves around the sun at a certain speed. Our solar system moves at a certain speed in the galaxy and our galaxy moves at a certain speed in the galaxy cluster. This cluster also moves at a certain speed. So far so good. What if someone were to leave the galaxy hub, say in a space ship. Wouldn it take longer to get "back" because everything is moving (in the case of that we went the oposite way of the galaxy movement pattern)? I guess my question is, are they moving to fast to "catch again" and ride their gravitational movement? <br />Posted by MarcoSpace</DIV><br />MacroSpace : I think I understand what you are asking. If you could travel away from ( let me use a larger group than a galaxy cluster) our super cluster of galaxies into a large void then select to return to the your point of origin, the distance would be greater because of the effect Dark Energy has on the inflation of the universe, if this is what you were asking, I would say at the first look, yes, the distance would be greater to some degree, but it would depend on the magnitude of how far you would travel, how fast you could travel and how long you stayed at the far point, the velocity the space craft could obtain would determine if you could catch the point of origin, as for the idea of riding their gravitational movement, you would not have left the gravitational effect of your point of origin as long as you and it (your point of origin)are inside the same visible universe, however I suppose it could be possible to reach a point where the Dark Energy and Gravity of the point of origin reach near equal in their effect on you at the far point.