Peter Pilewskie joined the University of Colorado in 2004 with a joint appointment in the Laboratory for Atmospheric and Space Physics (LASP) and in the Department of Atmospheric and Oceanic Sciences. He teaches courses in radiative transfer, remote sensing, and environmental instrumentation. Peter is a co-Investigator for the NASA Solar Radiation and Climate Experiment (SORCE), the current NASA mission measuring the total and spectral solar irradiance from space, the Principal Investigator for the Total and Spectral Solar Irradiance Sensor (TSIS), the future mission to insure the continuity of those same climate data records, and the LASP science lead on CLARREO Pathfinder. His research interests include solar spectral variability and its effects on terrestrial climate; quantifying the Earth-atmosphere radiative energy budget; surface, airborne, and satellite remote sensing of clouds and aerosols; and theoretical atmospheric radiative transfer. Prior to his arrival at the University of Colorado, Peter spent 15 years at the NASA Ames Research Center where his research centered on airborne measurements of atmospheric radiation, cloud and aerosol remote sensing, and analysis of the atmospheric radiative energy budget.