[astro-ph.EP]. Interpreting Enceladus’s past and present surface history and interior state remains challenging, owing to uncertain prescription of its impact bombardment history and limited interpretation of its crater statistics. Further […]
Enceladus
![(a) Schematic of Europan ice-ocean system [related image in 11]. (b) Map of sea surface temperature (◦C) showing the transition between the temperature-stratified North Atlantic Ocean and the salt-stratified Arctic Ocean; (c) Potential temperature (left) and salinity (right) profiles with depth from location near the North Pole. Different water-mass characteristics are labeled. -- [astro-ph.EP]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/08/What-can.png?resize=1200%2C582&ssl=1)
Posted inWater/Hycean Worlds & Oceanography
What Can Planetary Ice Shells Teach Us about Ocean Mixing and Life, and Why Salt Matters
[astro-ph.EP] Past and present climates, both on Earth and in planetary systems, maintain ice covers with underlying oceans. This can range from sea ice in the Arctic Ocean to global […]
Posted inExtremeophiles and Extreme Environments
Methanotrophy Under Extreme Alkalinity In A Serpentinizing System
[Nature] Serpentinization produces hyperalkaline, H2– and CH4-rich fluids that support microbial life and serve as analogs for ocean worlds such as Enceladus. While methane production in these systems has been […]
Posted inIcy Worlds
Dynamic Controls On Subsurface Water Chemistry And Habitability On Icy Moons
Icy moons are natural satellites whose surfaces contain a substantial fraction of frozen materials, most notably water ice.
Posted inAstrochemistry, Astrogeology, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Enceladus, Habitable Zones, Icy Worlds, Status Report
Tidal Rock Grinding As A Source Of H2 On Enceladus
The Solar System hosts multiple potentially habitable environments, including the subsurface ocean beneath the icy crust of Saturn’s moon Enceladus.
Posted inAstrochemistry, Astrogeology, Biosignatures & Paleobiology, Callisto, Enceladus, Europa, Ganymede, Icy Worlds, Imaging & Spectroscopy, Status Report
Temperature-programmed Desorption Of SO2 From Water Ice Surfaces: Adsorption Energy Distributions
Context. Sulphur-bearing species play a key role in the chemical evolution of the interstellar medium and icy Solar System bodies such as the Jovian moons, yet the sulphur budget remains […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Cryobiology, Enceladus, Europa, Ganymede, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Magnetic Fields, Electromagnetism, bioelectricity,, Mapping, Geodesy, Cartography, Bathymetry, Status Report, Titan, Water/Hycean Worlds & Oceanography
Electrical Properties of Icy World Oceans from Laboratory Measurements
Many icy bodies in the Solar System are hypothesized to harbor subsurface liquid-water oceans, with Jupiter’s moon Europa among the most promising for astrobiology research. NASA’s Europa Clipper mission will […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Enceladus, Europa, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Io, Press Release, Water/Hycean Worlds & Oceanography
SwRI Findings Reconsider The Existence Of Europa’s Vapor Plumes
Looking back at 14 years of Hubble telescope data for Jupiter’s moon Europa has given Southwest Research Institute (SwRI) scientists a better understanding of its tenuous atmosphere. The findings have […]
Posted inBiosignatures & Paleobiology, Enceladus, Europa, Habitable Zones, Icy Worlds, Press Release, Water/Hycean Worlds & Oceanography
A Framework For Evaluating Biosignature Potential Against The Abiotic Baseline On Ocean Worlds
Ocean worlds are considered as targets for life detection missions because they meet several key requirements for habitability. However, identifying potential life on other worlds requires observing clear and unambiguous […]
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Enceladus, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Press Release
Exploring Enceladus’s Interior Structure Using Electromagnetic Induction
Electromagnetic (EM) sounding can constrain the electrical structure of Enceladus and, in turn, the salinity of its ocean and the porosity, fluid content, and thermal state of its hydrothermally active […]