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 ...
On Friday, Dec. 12, the Planetary Science Institute celebrated the end of the year with the annual holiday party! Office Manager Kimberly Foote transformed the west wing conference room and kitchen ...
A composite view of Europa’s spider-like Manannán Crater (right), taken by NASA’s Galileo spacecraft in May 1998. Credit: NASA/JPL/University of Arizona Dec. 1, 2025, TUCSON, Ariz. – From Europa to ...
An artist's concept of NASA’s Mars Reconnaissance Orbiter, which has been orbiting the Red Planet since 2006. The antenna is part of SHARAD, a radar that peers below the Martian surface. Credit: ...
A collage of moons from the outer Solar System suspected of having a subsurface ocean. New research addresses the mystery as to why their surfaces can be so varied. Credit: NASA On moons in the outer ...
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NASA recently announced that the Martian rover Perseverance discovered a potential biosignature, a substance or structure that might have a biological origin. Dotting the side of a rock formation ...
“Would you like some curiosity?” Pamela Gay asked passersby at MagicCon: Atlanta last weekend. Most people responded to the Planetary Science Institute Senior Scientist with a tentative and slightly ...
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 ...
The winds of Mars sculpt and shape sand into wave-like dunes. Much of what is known about how sand dunes move around the surface is based on images taken by the HiRISE camera onboard the Mars ...
Mars is more than a dusty, red planet. Some parts of its surface can resemble the folds and ridges of the human brain or ocean corals. Scientists have dubbed such Martian surface features ‘brain coral ...
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 ...
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