Growing evidence suggests that a subsurface ocean lurks beneath the icy surface of Uranus’ moon Ariel, but new research, published in Icarus, characterizes the possible evolution of this ocean, and ...

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July 24, 2025, TUCSON, Ariz. – On the slopes of Martian mountains and craters clings what appears to be flowing honey, coated in dust and frozen in time. In reality, these features are incredibly slow ...

June 26, 2025, TUCSON, Ariz. – After nearly 20 years of operations, NASA’s Mars Reconnaissance Orbiter, or MRO for short, is on a roll, performing a new maneuver to squeeze even more science out of ...

Planetary Science Institute scientists have converged in the lab, trying to decipher the mineral composition of dust. Not just any dust, but rather a simulated sample of Mercury’s surface, created as ...

Today, as PSI gains a new director and CEO, we celebrate the last 21 year of leadership under Mark V. Sykes. Sykes was hired to lead the Planetary Science Institute in 2004 and over the decades he has ...

Mishal K T was awarded the 2025 Pierazzo International Student Travel Award at the Lunar and Planetary Science Conference at The Woodlands, Texas, along with a check for $2,000 from PSI Director and ...

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 ...

At the December 2024 meeting of the American Geophysical Union, or AGU, in Washington, D.C., PSI’s Sanlyn Buxner became president-elect of the AGU’s Education Section. At PSI, Buxner is a Senior ...

Dec. 18, 2024, TUCSON, Ariz. – The Planetary Science Institute has selected University of Arizona graduate student Namya Baijal and Indian Institute of Technology Kanpur doctoral candidate Mishal K T ...

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 ...

Nov. 18, 2024, TUCSON, Ariz. – Billions of years ago, a giant asteroid struck the Moon with so much energy that it melted rock until it was super-heated and white-hot, or what scientists call impact ...