I would agree that the earth is certain the center of our cosmos, insofar as it's our habitation and the focus of our physical activities. Just because it is insignificant when compared to the size and scale of the larger universe doesn't imply, in my view, that it is insignificant to we who dwell on it; there seems to be a confusion on the part of certain segments of physicalist-reductionists that physical scale, in this case, corresponds to meaning, which is perhaps among the greatest spiritual tricks ever played.