With respect to the shape of the universe,
the only question for me is whether we’re on the edge of a spheroid looking in or on the edge of a spheroid looking out. If looking in, then everywhere we look in the night sky leads to the center, if we could see far enough. If looking out, then everywhere we look would lead back to us, if we could see far enough. On first glance, the Hubble photos of multiple galaxies in a single photo would tend toward the first viewpoint, but this may not be necessarily so. Visuals can be deceptive. The second view better fits the measurements of an ever-increasing red shift, which means an ever-increasing acceleration in the spread of celestial bodies away from each other. Two points on the surface of an expanding sphere would certainly spread apart faster than any given point in relation to the center, especially if measured on the geodesic curvature, not on a straight line making a short cut across the curve. If the measurements according to red-shift agreed with measurements of the geodesic, then that would indicate that, not only is space curved, but we have no access to what lies inside the curve, presumably the past, possibly dark matter, perfectly balancing out the expansion of the universe. The outer edge of the universe, the event horizon that we see in every direction, is the cosmological constant, expanding from a point in the center at a constant rate, presumably slowing over time what with old age and all.