if space is expanding,where is it going??i know sounds silly,,,but space can only expand into space,expanding assumes space has an edge,,,what follows must be more space(literal english meaning) or space(spacetime) would be confined…im not confusing the meaning,im clarifying it…if it is only expanding then how can we see it,how can any wave travel back to us,over 13billion lightyears,,,why didnt the expansion carry it away???surely it would all be travelling away…and what about the doppler effect,,,clearly there are two forces interacting,darkenergy,and dark matter…space(of spacetime) and time(of spacetime)…space time is not just space,,it is space and time,,,or neither would exist,if they didnt interact,,there could be no motion,,,we can see time but its effect are clearly present,,,remove time from space,and explain particle decay…
they must also oppose,other wise any point in space would be at a set point in time,,and as long as they remain stable relative to each other,,,nothing would change,,,the symmetry would be stable,and the universe frozen…i know its not commonly accepted yet,,,but it will be,in time…time+time=space…take five minutes to think about this,,then if you still disagree,please correct me…