Cosmology at a Crossroads: New Findings Challenge Dark Energy and ΛCDM
A study by Subir Sarkar and collaborators argues the universe may be anisotropic (showing a cosmic dipole) and that directional biases in Type Ia supernova measurements could mimic cosmic acceleration, undermining the FLRW framework and dark energy in the ΛCDM model. If confirmed, this could trigger a paradigm shift to a data-driven cosmology, though many cosmologists remain cautious and independent validation is needed.