Material melted during lunar impact flowed and then froze into long tongues of material that have been cratered by much smaller impactors over time. Credit: NASA/GSFC/Arizona State University This ...

Illustration of the uncertainty of Earth's orbit 56 million years ago due to a potential past passage of the Sun-like star HD7977 2.8 million years ago. Each point's distance from the center ...

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 ...

Top: Black and white image of the Moon from Moon Mineralogy Mapper data. Bottom: Map of water on the Moon. The different colors represent different shapes to the water absorption and correlate with ...

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 ...

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 ...

Latitudinally corrected 3-GHz TA shown at midnight local time.(a) These data show a clear localized antenna temperature (TA) enhancement of about 9 degrees Kelvin centered on the mapped ...

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 ...

New research suggests that Ariel, a moon of Uranus, might have once harbored an ocean about 100 miles (170km) deep. Credit: NASA/JPL-Caltech/PSI/Mikayla Kelley/Peter ...

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 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 ...

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 ...