Physicists find evidence that the universe isn't perfectly uniform — potentially unraveling a 100-year-old model of cosmology

Astronomers found tentative evidence that the universe may not be perfectly uniform, potentially challenging a nearly 100-year-old cosmological model. Using supernova data and galaxy surveys, researchers detected small but significant deviations — reaching 2 to 4 sigma — suggesting hidden complexities may be reshaping our understanding of cosmic expansion.