Two enormous structures — the Giant Arc and the Big Ring — appear in the same region of deep space at the same cosmic distance, a pairing so unexpected that Alexia Lopez, one of the astronomers who discovered them, says current cosmology struggles to explain even one of them, let alone both together.

Two of the largest reported structures in the distant universe do not just look strange on their own. They appear to sit in the same part of deep space, at the same cosmic distance, as if the universe placed two oversized patterns beside each other where standard cosmology expected matter to look much smoother. The [...] The post Two enormous structures — the Giant Arc and the Big Ring — appear in the same region of deep space at the same cosmic distance, a pairing so unexpected that Alexia Lope