Dr. Alice Baldridge's research interests are currently focused on two broad subjects: 1) understanding the past and current processes that have shaped planetary surfaces and 2) comparing laboratory, ...

The Planetary Science Institute (PSI) proudly announces the Betty Pierazzo International Student Travel Award, in honor of our late Senior Scientist.

Stars that pass by our Solar System have altered the long-term orbital evolution of planets, including Earth, and by extension modified our climate.

Sept. 16, 2024, Tucson, Ariz. – A new analysis of maps of the near and far sides of the Moon shows that there are multiple sources of water and hydroxyl in the sunlit rocks and soils, including ...

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PSI Co-I Kaib will contribute to the proposal Deciphering and interpreting the survival of the pristine Uranian moons. Co-I Kaib will assist with running and analyzing simulations that model the ...

Lava tubes are high priority targets for in situ exploration of Mars, with the potential to provide access to subsurface cavities that could facilitate scientific studies of the Martian subsurface as ...

Scientists from the Planetary Science Institute have uncovered evidence of potential salt glaciers on Mercury, opening a new frontier in astrobiology by revealing a volatile environment that might ...

Oct. 28, 2024, TUCSON, Ariz. – The Moon and Mars are pocked with giant impact craters acquired very long ago, while there appears to be a dearth of them on Earth and Venus. Time may have healed many ...

Strong evidence suggests that liquid water must have played an important role in the evolution and current state of Ceres, the largest asteroid and only dwarf planet in the main asteroid belt. The ...

The roots of PSI were established in the late 1960s, when several young PhD’s graduated from the University of Arizona laboratory of the pioneering planetary astronomer, Gerard Kuiper… ...

A mysterious object discovered in the main asteroid belt in 2021 was determined to be a main-belt comet by Planetary Science Institute Senior Scientist Henry Hsieh, Scott Sheppard of the Carnegie ...