Detection of anisotropic cosmic structures on a gigaparsec scale

Nature, Published online: 24 June 2026; doi:10.1038/s41586-026-10702-5

Using the parameter-free Angular Distribution of Pairwise Distances for measuring directional correlations, evidence is found for coherent anisotropic structures extending over gigaparsec scales, challenging the assumption that the Universe becomes statistically isotropic on sufficiently large scales.