Quasar-driven galactic outflows are a major driver of the evolution of massive galaxies. We report observations of a powerful galactic-scale outflow in a z=3 extremely red, intrinsically luminous (L_{\rm bol}\simeq 5\times 10^{47}erg s^{-1}) quasar SDSSJ1652+1728 with the Near Infrared Spectrograph (NIRSpec) on board JWST. We analyze the kinematics of rest-frame... Show more