The Perseverance rover on Mars inspects a rock dubbed Cheyava Falls with the Scanning Habitable Environments with Raman & Luminescence for Organics & Chemicals (SHERLOC) instrument on its robotic arm.

Sanlyn Buxner discusses the near and far sides of the Moon at the STEMAZing Solar System Exploration – Workshop for Educators that took place at PSI. Credit: Alan Fischer/PSI. PSI hosted a dozen pre-K ...

Pamela L. Gay has been honored with the 2026 Westford Academy Alumni Distinguished Award for bringing the world of planetary science to the public. Westford Academy in Westford, Mass., is one of the ...

Long period comet C/2006 P1 (McNaught) over the Pacific ocean, as imaged from Paranal Observatory in 2007. Credit: ESO/Sebastian Deiries The Gaia mission has allowed researchers to understand the ...

On June 22, 2026 PSI Pierazzo International Student Travel Award winner Emily Elizondo received her certificate at the “Building the Hard Rocky Planets – From Mercury to the Asteroid Belt” workshop in ...

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

Mikayla Kelley and PSI Director Amanda Hendrix pose with a customized cake at the Institute’s going away luncheon. Credit: Alan Fischer PSI staffers gathered for lunch and cake to say goodbye to ...

PSI’s role: Two PSI senior scientists, Dr. William K. Hartmann and Dr. Donald R. Davis, were the first to suggest the leading modern hypothesis of the moon’s origin, in a paper published in 1975 in ...