The main part of the planetary science activity at Caltech is located in the first floor of the South Mudd building. Several laboratory activities are found at lower levels and in adjacent buildings and are described in the web pages of individual faculty. Geoff Blake maintains a laboratory for cosmochemistry and spectroscopy and Bethany Ehlmann maintains a laboratory for spectroscopy of geological samples and the study of weathering processes. Observing facilities include the Keck telescopes in Hawaii, Palomar, the Owens Valley radio observatories, and the CSO (Caltech submillimeter Observatory). Computing facilities include the CITerra high performance computing cluster.
JPL is a few miles away and many planetary scientists at Caltech interact or collaborate with colleagues at JPL ,especially in mission-related research.