Cosmology from the First Year DESI BAO Measurements

Explore the latest findings from the Dark Energy Spectroscopic Instrument (DESI) in this physics colloquium talk. Delve into the baryon acoustic oscillation (BAO) measurements from DESI's first year of observation, spanning seven distinct redshift intervals. Examine the implications of these measurements for our understanding of the cosmological model, including constraints on the Hubble Constant, dark energy equation of state, curvature, and summed mass of neutrino mass eigenstates. Gain insights into how DESI's new and future measurements relate to reported tensions in the Hubble Constant and the LCDM model. Learn about DESI's ambitious five-year mission to spectroscopically classify nearly 40 million galaxies and quasars across one-third of the sky, reaching redshifts up to z~3.5.