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 ...
Visitors in the PSI parking lot view the Moon and Saturn through telescopes on Oct. 28, 2015. Credit: PSI/Alan Fischer On the evening of Oct. 28, 2025, the Planetary Science Institute hosted a ...
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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 ...
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 ...
The march of the planets around the Sun may seem interminable, but new research suggests that the likelihood of another star in our galaxy passing by and disrupting our Solar System is slightly higher ...
Religion and science can sometimes feel at odds, to the chagrin of Grace Wolf-Chase, a Planetary Science Institute senior scientist and senior education and communication specialist who is also a ...
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 ...
Secondary craters – you know, the kind that are created by the falling debris that follows an initial impact – are what scientists call… annoying. This is because they can muddy up crater counts, ...
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