About The Planetary Science Institute

PSI is a nonprofit science research institute focusing on the exploration of the solar system. Our scientists are distributed in 16 states, Australia, Canada, the UK, Russia and Switzerland, with affiliates in Japan and China. We are headquartered in Tucson, Arizona, where PSI was founded in 1972. We are involved in numerous NASA missions, the study of Mars, asteroids, comets, interplanetary dust, the origin of the solar system, planet formation about other stars, dynamics, impact physics, and the rise of life. PSI scientists conduct field work in North America, Australia and Africa. They are also actively involved in science education and public outreach through school programs, childrens books, popular science books and art.

PSI Locations

In 2004, PSI purchased a building for its corporate headquarters in Tucson. Continued PSI growth has resulted in expansion into additional space, leased nearby (the West Wing). Map and directions.

PSI is an Arizona corporation, organized under 501(c)(3). The Board of Trustees is its governing body. The PSI CEO and Director is Mark V. Sykes.

Planetary Science Institute (PSI) is an Equal Opportunity/Affirmative Action employer and complies with all federal and state regulations. Employees are treated during employment and qualified applicants are considered for employment without regard to race, religion, color, sex, age, national origin or ancestry, marital status, parental status, sexual orientation, disability or status as a veteran. This policy statement is included in the following Affirmative Action Plans and is posted on PSI bulletin boards.