Okay to preface my question, we know the universe is expanding. We know that this is not uniform otherwise the distance between the Earth and Alpha Centauri would be increasing at the same rate as the distance between The Milky Way and M87, for example. I'm over-generalizing here for the sake of simplicity. Is it at all possible then, that due to the acceleration of the expansion of the universe for a galaxy that we see today to be invisible to us in the future? I'm thinking the answer is no. I think it is no because the reference frame. If we are traveling away from a far off galaxy at greater than c, then rate of expansion between us in our reference frame is greater than c. However in the reference frame of a photon traveling from the distant galaxy to us this would not be the case. The trip wouldn't take nearly as long and thus the photon would actually reach us. I could be way off track with this but any guidance would be greatly appreciated. This would answer several questions I have regarding this matter.