KATRIN: Closing in on the Neutrino Mass

The absolute mass scale of the neutrino is a critical open question in nuclear/particle physics and in cosmology. This talk will explore the potential for direct measurements of this quantity using the kinematics of beta decay, with a focus on the Karlsruhe Tritium Neutrino experiment (KATRIN). In its first two scientific campaigns, KATRIN has pushed the worldwide direct laboratory limit on the neutrino mass to 0.8 eV (90\% confidence) -- and seven subsequent neutrino-mass campaigns have now been completed. I will discuss the scientific possibilities of KATRIN's existing data sets, from probing the neutrino mass to testing the Standard Model, and will share prospects for the next few years of KATRIN science.