Ofer Lahav

After more than a quarter of a century as the standard model of Cosmology, the Λ Cold Dark Matter (ΛCDM) paradigm is increasingly challenged by combinations of observations from galaxy clustering, weak lensing, Type Ia supernovae, and the cosmic microwave background. This talk will critically review recent results from DESI++ and DES++, and contrast the evidence supporting ΛCDM with emerging indications for an evolving dark energy component.