https://en.wikipedia.org/wiki/Big_Ring
Significance
The discoveries of the Big Ring as well as the Giant Arc are significant as they challenge the Cosmological Principle, which asserts that the universe is homogeneous and isotropic on large scales. Currently, there is no theoretical model to account for the existence of the gigantic galactic formations. Lopez stated “Neither of these two ultra-large structures is easy to explain in our current understanding of the universe."[9]
