Neutrino masses from the latest DESI results

The Dark Energy Spectroscopic Instrument (DESI) collaboration is performing a spectroscopic survey with the aim of collecting the redshifts of 40 million galaxies and quasars over a five year period. These redshifts enable precision measurements of the large-scale distribution of matter in the Universe. Key measurements pursued by DESI include the baryon acoustic oscillation (BAO) scale and the amplitude of redshift space distortions (RSD), which probe the expansion and growth of structure over ten billion years of cosmic history. In addition to setting stringent new constraints on the dark energy equation of state, the cosmic matter density, and the amplitude of fluctuations, these measurements also provide the strongest current limits on the sum of the neutrino masses when combined with information from the cosmic microwave background. In this talk, I will give an overview of the latest neutrino mass results from DESI, both independently of and in combination with external datasets. I will also discuss the physics behind the constraints. Finally, I will assess the agreement between cosmological and laboratory constraints on the neutrino masses and discuss the implications for neutrino physics and cosmology.