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Geophysical Research Letters VOL.53 ISSUE 15 | 6 August 2026
Updated Interior Structure of Callisto From a Reanalysis of Galileo Data
G Cascioli + F Petricca + E Mazarico ...
The internal structure of Callisto has been a long‐standing question since the Galileo mission. Previous analyses suggested a largely undifferentiated interior. We present...
Journal of Geophysical Research: Planets VOL.131 ISSUE 7 | 15 July 2026
A Principal Component Index for Identifying and Surveying Martian Chloride Salts Using THEMIS Multispectral Thermal Infrared Images
J R Hill + P R Christensen
Martian chloride salt deposits were first identified by Osterloo et al. (2008, https://doi.org/10.1126/science.1150690) and surveyed by Osterloo et al. (2010, https://doi.org/10.1029/2010je003613)...
Geophysical Research Letters VOL.53 ISSUE 15 | 6 August 2026
Detecting an Ocean Inside Callisto With Geodetic Measurements From Europa Clipper and Juice
Flavio Petricca + Gael Cascioli + Erwan Mazarico
Determining whether Callisto hosts a subsurface ocean, and the implications for material and energy transport through its hydrosphere, is of high interest to NASA's Europa...
Geophysical Research Letters VOL.53 ISSUE 15 | 4 August 2026
Large (∼80 km) Shield Volcanoes on the Moon Possibly Fed by Shallow Magma Reservoirs
Le Qiao + James W Head + Dengao Qiu ...
Large shield volcanoes are among the most prominent volcanic structures on terrestrial bodies. The Moon, while volcanically very active in the past and hosting various volcanic...
2026 Astrobiology Science Conference | 21 May 2026
Philosophical Environmentalism Can Boost Space Science
Philosophical environmentalism can boost space science because it is difficult to enact quality science in a ruined ecology. By conserving places for their cultural or ecological...