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 ...

Feb. 14, 2024, Tucson, Ariz. – Stars that pass by our Solar System have altered the long-term orbital evolution of planets, including Earth, and by extension modified our climate. “Perturbations – a ...

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 ...

Find An Expert Search by expertise (topic, mission, instrument, technique, region) and we’ll list PSI experts. Results update below and don’t use the department checkboxes.

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 ...

NOTICE: This is a statement by Planetary Science Institute CEO Mark V. Sykes, and reflects the values and principles that guide the daily management of and planning for this Institute under his ...

A recent large survey of low-albedo asteroid spectra in the 3-μm region show a range of hydrated compositions, with one large group similar to the CM chondrites and a second large group showing ...

The universe is our laboratory: PSI scientists are pushing the boundaries of knowledge, exploring worlds near and far, from Earth and beyond. PSI is a vibrant community dedicated to excellence and ...

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 ...

Let’s do some math. As a target, you need to determine the cross-section of the Moon (target Moon is a disk). The radius of the Moon is 1,737 km, so its cross-sectional area is 9.5 X 10 6 km 2. The ...

The Planetary Science Institute hosts MARSTHERM (marstherm.psi.edu), a public interface to numerical thermal modeling and thermal-inertia derivation codes ...

Sept. 1, 2024, TUCSON, Ariz. – People have observed the bright Martian poles wax and wane for centuries, but only within the last 50 years have scientists discovered that they are mostly comprised of ...