The shape of the universe is not something we often think about. But my colleagues and I have published a new study suggests it could be asymmetric or lopsided, meaning not the same in every direction.
Should we care about this? Well, today’s “standard cosmological model” – which describes the dynamics and structure of the entire cosmos – rests squarely on the assumption that it is isotropic (looks the same in all directions), and homogeneous when averaged on large scales.
But several so-called “tensions” – or disagreements in the data – pose challenges to this idea of a uniform universe.