Land-fast sea-ice (fast ice) in McMurdo Sound grows through heat loss to the atmosphere and through heat loss to the ocean due to the presence of supercooled water.
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Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biosignatures & Paleobiology, Cryobiology, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Icy Worlds, Mapping, Geodesy, Cartography, Bathymetry, Microbiology & Virology, Origin & Evolution of Life, ROVs/Submersibles/Diving, Status Report, Water/Hycean Worlds & Oceanography
Ice-covered Lake Enigma In Antarctica Supports Unique Microbial Communities
Northern Foothills of Victoria Land, Antarctica contains numerous hydrological formations, ranging from small surface streams and ponds fed by glacial or snow meltwater to permafrost lakes containing briny pockets.
Posted inAstrogeology, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Europa, Habitable Zones, Icy Worlds, Status Report, Water/Hycean Worlds & Oceanography
The Role Of Ammonia In The Distribution Of Volatiles In The Primordial Hydrosphere Of Europa
The presence of a hydrosphere on Europa raises questions about its habitability, and studies of its volatile inventory can provide insight into its formation process. Different scenarios suggest that Europa’s […]
Posted inAstrogeology, Europa, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, Status Report, Water/Hycean Worlds & Oceanography
How REASON Will Penetrate Europa’s Surface
This artist’s concept illustrates how NASA’s Europa Clipper spacecraft will use radar to peer beneath Europa’s ice crust to reveal the structure underneath.
Posted inBiogeochemical Cycles & Geobiology, Habitable Zones, Icy Worlds, Mapping, Geodesy, Cartography, Bathymetry, Miranda, Press Release, Uranus, Water/Hycean Worlds & Oceanography
Is An Ocean Lurking Beneath Miranda?
Uranus’s moon Miranda might have once harbored an ocean beneath its surface, according to research published in the Planetary Science Journal. The work was led by graduate student Caleb Strom […]
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Cryobiology, Europa, Exploration Gear & Tech, Icy Worlds, Missions & Hardware, Robotics/Rovers/UAVs, ROVs/Submersibles/Diving, Status Report
Travel Times of a Descending Melting Probe on Europa
In this study, we calculated the travel times of a thermal probe that descends through Europa’s ice shell. The ice column is simplified to a conductive layer.
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Astrogeology, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Cryobiology, Habitable Zones, Icy Worlds, Microbiology & Virology, Status Report
Evaluation of Extraction Solvents for Untargeted Metabolomics to decipher the Dissolved Organic Matter of Antarctic Cryoconite Holes
Cryoconite holes are biological hotspots with a high biogeochemical turnover rate, contributing significantly to the glacial ecosystem’s overall carbon cycles and net fluxes.
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Enceladus, Icy Worlds, Status Report, Water/Hycean Worlds & Oceanography
Ocean Weather Systems On Icy Moons With Application To Enceladus
We explore ocean circulation on a rotating icy moon driven by temperature gradients imposed at its upper surface due to the suppression of the freezing point of water with pressure, […]
Posted inAstrogeology, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, Neptune, Status Report, Triton, Water/Hycean Worlds & Oceanography
Enhanced Voyager 2 Approach Image Sequence Of Icy Ocean World Triton
Original Caption Released with Image: Triton Voyager 2 approach sequence with latitude-longitude grid superposed. The color image was reconstructed by making a computer composite of three black and white images […]
Posted inArctic / Antarctic / Alpine, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Habitable Zones, Icy Worlds, Press Release, Terraforming & Geoengineering, Water/Hycean Worlds & Oceanography
New Evidence Of When Earth Was Slushy
At the end of the last global ice age, the deep-frozen Earth reached a built-in limit of climate change and thawed into a slushy planet.