He heads the NMSU Quasar Absorption Line Group. Chris specializes in observational spectroscopic techniques and analysis, including long slit and echelle formats. He has taught many introductory classes in Astronomy and Physics at UC Santa Cruz, Penn State, and New Mexico State University. He is currently working hard to complete a graduate level text book entitled "Absorption Line Spectroscopy of Cosmological Sources" to be published in the Astrophysics Series of Cambridge University Press. His favorite topics in the class room are "Life in the Universe" and "Human Space Flight".