Georgia State University at Georgia State is split between physics and astronomy. Areas of research range from biophysics, condensed matter physics, neurophysics, nuclear physics, and physics education and innovative instruction. The astronomy program uses many observatories, including the Lowell Observatory in Flagstaff, Arizona and the Small and Moderate Aperture Research Telescope System (or SMARTS) in Chile, and the CHARA array on Mount Wilson Observatory in Los Angeles County, California, Hard Labor Creek Observatory in Rutledge, Georgia, and the Urban Life Observatory, all of which are operated by Georgia State. Astronomy is now also a partner in the Apache Point Observatory 3.5-m telescope. Biological
Lowell Observatory Flagstaff. Also located on the Mars Hill campus is the Pluto Discovery Telescope, used by Clyde Tombaugh in 1930 to discover the dwarf planet Pluto. Lowell Observatory currently operates four research telescopes at its Anderson Mesa dark-sky site, located southeast of Flagstaff, including the Perkins Telescope (in partnership with Boston University) and the John S. Hall Telescope. Lowell is a partner with the United States Naval Observatory and Naval Research Laboratory in the Navy Precision Optical Interferometer (NPOI) also located at that site. The Observatory also operates smaller research telescopes at its historic site on Mars Hill and in Australia