Proca in the sky

The standard model of cosmology, the $\Lambda$CDM model, describes evolution Universe since Big Bang with just a few parameters, six in its basic form. Despite being simplest direct late-time measurements Hubble constant compared early-universe result so-called $H_0$ tension. It is claimed that late time resolution predestined to fail when different cosmological probes are combined. In this work, we shake ground belief very simple model. We show how, context cubic vector Galileon models, tension can naturally be relieved using combination CMB, BAO and SNe observations without any prior on . reduced even further by including local measurement constant.