Planetary Science Institute

Planetary Science Institute, a nonprofit research organization headquartered in Tucson, Arizona, serves as prime recipient on federal research grants and cooperative agreements, delivering planetary science research, data analysis, theoretical modeling, and mission support services to NASA and the National Science Foundation.

PSI operates exclusively in full-and-open competition without set-aside designations, winning awards on technical merit across its core competencies in planetary geology, crater morphometry, lunar features analysis, Martian surface processes, magnetospheric dynamics, and spacecraft mission data interpretation. The organization has executed over $155 million in combined potential value across 980 awards in recent years, reflecting deep institutional capacity in executing NASA-sponsored planetary exploration research aligned with the Science Mission Directorate.

Customer concentration sits heavily with NASA, which funds approximately 91% of PSI's recent award portfolio. The National Aeronautics and Space Administration Shared Services Center anchors 662 awards worth $123.5 million in combined potential value, making it by far PSI's dominant customer. NASA Headquarters follows with 84 awards ($17.1 million), while NASA Ames Research Center, Marshall Space Flight Center, and Goddard Space Flight Center each place smaller but material volumes. The National Science Foundation accounts for eight awards. This customer concentration reflects PSI's positioning as a core research partner within NASA's planetary science enterprise rather than a diversified federal contractor.

PSI's prime footprint (94% of awards) spans research grants dominated by NASA's Planetary Data Archive and Research Task (PDART) program, Solar System Workings (SSW) program, and discipline-specific research opportunities; cooperative agreements supporting mission operations for instruments like the CheMin mineralogical instrument on Mars Science Laboratory and the Small Bodies Node of NASA's Planetary Data System; and purchase orders for specialized analytical work. Representative recent work includes a $651,075 grant (awarded October 2024) investigating origins and timing of shallow moonquakes in the lunar crust; a $978,164 grant for high-resolution 3D radar mapping and modeling of internal layers within Mars' North Polar Layered Deposits; a $4.455 million grant for development of the Ultraviolet Micromirror Imaging Spectrograph (UMIS); a $5.3 million cooperative agreement renewal (awarded December 2021) operating the Small Bodies Node of NASA's Planetary Data System; and a $721,814 cooperative agreement providing extended mission support for the CheMin instrument aboard Mars Science Laboratory. PSI also received a $19,980 purchase order (April 2026) from NASA for a Mars survey identifying locations suitable for hydroelectric power development.

Activity trajectory shows fluctuation rather than sustained growth. PSI executed 49 awards in 2022, 52 in 2023, 52 in 2024, declining to 34 in 2025 and 13 in 2026 (through July). The 2026 figure reflects year-to-date partial reporting. Within the next twenty-four months, 115 awards carrying combined potential value of $35.8 million face ultimate completion dates, presenting recompete exposure. This recompete cliff represents material pipeline pressure for the institute.

PSI operates as a prime on substantially all work (94% of awards), with subcontractor engagement limited to specialized expertise on select grants. Named subcontractors on prime grants include Southwest Research Institute (contributing thermal modeling and experimental physics support for multiple projects), Cornell University, University of Hawaii, Smithsonian Institution, MIT, Purdue University, and Lowell Observatory. As a subcontractor itself, PSI has placed effort under Southwest Research Institute on comet outburst plume research and under Texas Tech University System on lunar instrumentation development. This teaming pattern positions PSI primarily as a prime recipient orchestrating research efforts rather than as a feeder to larger primes.

Federal grant activity dominates the portfolio. Recent NSF awards include a $1.18 million grant (December 2025) from the Division of Research on Learning in Formal and Informal Settings for developing AI literacy curriculum integrating planetary science imagery for high school students in East Tennessee; a $169,023 Earth Sciences grant studying subduction zone rheology; and a $465,178 Mathematical and Physical Sciences award for N-body simulations of ring systems around small bodies. PSI also receives recurring research grants from NSF divisions spanning ocean sciences, earth sciences, and astronomical sciences, reflecting breadth across geophysical and planetary domains beyond core planetary science.

PSI's organizational structure includes a parent entity (Planetary Science Institute, UEI UDEGTBWMS6M9) and a child entity that functions as the primary federal awardee (UEI Q7KKMKT2ANN7), consistent with nonprofit research organization governance. The parent holds overall institutional authority; the child executes most federal awards.

The Service Contract Inventory dataset captures zero SCI-reportable invoiced revenue across FY2022–FY2024 and minimal FTE activity (0.2 FTEs in FY2024), reflecting that PSI's federal work is predominantly grant- and cooperative-agreement-funded research rather than billable service contracts above the $150,000 SCI reporting threshold. This is a meaningful distinction: SCI underreports PSI's actual federal activity because research grants and cooperative agreements are not captured in that inventory.

Capability framing centers on executing peer-reviewed planetary science research aligned with NASA Science Mission Directorate priorities. PSI conducts investigations spanning Mars surface processes (alluvial fan formation, polar ice deposits, valley databases, lava flow evolution), lunar geology and seismology (moonquake origins, crater morphometry, volcanic history, thermal properties), outer planet magnetospheres and icy satellites (Jupiter auroral features, Saturn's moons, Enceladus thermal budgets), small bodies (asteroids, comets, Kuiper Belt dynamics), and exoplanet characterization. The organization maintains data archiving and tool development capacity, exemplified by its stewardship of the Small Bodies Node and its MARSTHERM thermophysical analysis tool. This breadth reflects PSI's role as a scientific research organization serving the federal government rather than a contractor in the traditional sense—the distinction is material to competitive strategy and partnership opportunity assessment.