The Starfire Optical Range at Kirtland AFB, North Oscura Peak on White Sands Missile Range, and the Air Force Maui Optical and Supercomputing observatory (AMOS) are also operated by divisions of the Directed Energy Directorate in addition to their facilities at the Directorate's headquarters at Kirtland AFB. The Starfire Optical Range is used to research various topics of advanced tracking using lasers as well as studies of atmospheric physics which examines atmospheric effects which can distort laser beams. North Oscura Peak is used to research the various technologies necessary to facilitate successful tracking and destruction of an incoming missile via a laser and is used frequently for laser-based missile defense tests. AMOS provides space observation capabilities and computational resources to AFRL, the Department of Defense and other agencies of the US Government.