Preprint suggests Pantheon+ supernovae data challenges standard cosmological model

A new, non-peer-reviewed preprint proposes that an analysis of 1564 Type Ia supernovae from the Pantheon+ catalogue indicates a deceleration parameter that deviates significantly from the LambdaCDM model. This preliminary research suggests near-zero baseline acceleration and isotropic deceleration. The findings could potentially prompt new discussions regarding dark energy and the standard cosmological picture.