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 ...

A study recently published in the journal Nature Astronomy upends conventional wisdom regarding the formation and stability of pairs of orbiting objects in the Kuiper Belt beyond the planet Neptune.

Nov. 1, 2024, TUCSON, Ariz. – On a cold, ancient Mars, rivers flowed and a lake the size of the Mediterranean Sea swelled under the protection of thick ice ceilings, according to new research ...

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

The small white buildings dotting the barren red landscape of the Bentonite Hills might appear to be on Mars, but that’s only because people like Planetary Science Institute Research Associate Megan ...

A crowd gathered at NASA’s Kennedy Space Center in Florida to witness the launch of NASA’s Europa Clipper spacecraft on Monday, Oct. 14, 2024. “Launch went perfectly, and Europa Clipper is on its way ...

The Planetary Science Institute’s Associate Director and Senior Scientist Than Putzig, Senior Scientist Gareth Morgan, Senior Research Associate Fritz Foss and Research Scientist Matt Perry recently ...