A Powerful Window into Cosmic EvolutionTerahertz (THz) observations of interstellar atoms, molecules, and dust serve as powerful probes of the conditions within the interstellar medium that permeates our galaxy, providing insights into the origins of stars, planets, galaxies, and the Universe. Taking a cross-disciplinary approach to the subject, Te

Christopher K. Walker is a Professor of Astronomy and an Associate Professor of Optical Sciences and Electrical & Computer Engineering at the University of Arizona. He has over 30 years of experience designing, building, and using state-of-the-art receiver systems for THz astronomy. He is the author of numerous papers on star formation and protostellar evolution, a topical editor for IEEE Transactions on TeraHertz Science and Technology, and the principal investigator of the long-duration balloon project "The Stratospheric THz Observatory (STO)" funded by NASA.