Volunteers from the Planetary Science Institute spent their weekend engaging people of all ages in planetary science at the Tucson Festival of Books, which took place March 15-16 at the University of ...

March 27, 2025, TUCSON, Ariz. – Planetary Science Institute Senior Scientist Roger Clark was named a Fellow of the American Association for the Advancement of Science, a distinguished lifetime honor ...

When an impactor strikes a planet or moon, the resulting debris, or ejecta, sprays out and around the impact site, a process called ejecta emplacement. Planetary Science Institute Research Scientist ...

In 2022, the Planetary Science Institute hosted a virtual workshop titled “Mercury’s Surface Response to the Interplanetary Environment: Identifying Needed Studies in Laboratory Astrophysics.” From ...

Mar. 18, 2025, TUCSON, Ariz. – Between Hawaii and California, trash swirls in giant ocean currents, caught up in the infamous, Texas-sized Great Pacific Garbage Patch. This is just one of many found ...

PSI is a nonprofit 501(c)(3) corporation, and an Affirmative Action/Equal Opportunity Employer, including disability/veterans.

PSI is a nonprofit 501(c)(3) corporation, and an Affirmative Action/Equal Opportunity Employer, including disability/veterans.

PSI is a nonprofit 501(c)(3) corporation, and an Affirmative Action/Equal Opportunity Employer, including disability/veterans.

PSI is a nonprofit 501(c)(3) corporation, and an Affirmative Action/Equal Opportunity Employer, including disability/veterans.

PSI is a nonprofit 501(c)(3) corporation, and an Affirmative Action/Equal Opportunity Employer, including disability/veterans.

PSI is a nonprofit 501(c)(3) corporation, and an Affirmative Action/Equal Opportunity Employer, including disability/veterans.

The Planetary Science Institute (PSI) proudly announces the Betty Pierazzo International Student Travel Award, in honor of our late Senior Scientist. This award is designed to inspire graduate ...