While the standard cosmological model assumes the universe is homogeneous and isotropic on a large scale, recent observations revealing gigaparsec-scale anisotropies and cosmological anomalies have rendered this foundational principle increasingly contested.
The evidence we hold leans leans supported
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The claim represents the core assumption of the standard cosmological model (the cosmological principle). Although historically well-supported and still forming the basis of Lambda-CDM, recent studies (e.g., detecting large-scale anisotropies and anomalies in the kinematic dipole) have generated significant debate and tension within observational cosmology. Thus, the evidence is best classified as contested.