Abstract

Twenty-seven years after the discovery of the first planet orbiting a star other than the Sun, it is now clear that extrasolar planets are ubiquitous in the galaxy. Though our understanding of exoplanet demographics has dramatically expanded in recent years, many fundamental questions about their origin and composition remain. High-precision high-resolution spectroscopy (HRS) at the diffraction limit of large telescopes enables the most detailed measurements of exoplanet properties, including their atmospheric composition and dynamics, orbits, and masses. I will present recent results obtained with the Keck Planet Imager and Characterizer (KPIC) at W.M. Keck Observatory as well as prospects for revolutionary advances in exoplanet detection and characterization with future ground- and space-based facilities.