![Site locations and hypothesized pan-Arctic glaciation. ODP Site 910 and MD99-2277 (red dots) are located in the Eurasian sector of the Arctic Ocean and central Nordic Seas, respectively. Site 910 lies just beyond the margins of the maximum MIS 2 Eurasian ice sheets [gray dashed line; based on (51)], while MD99-2277 was simultaneously covered by sea ice. However, both sites are hypothesized to have been fully glaciated under the maximum pan-Arctic ice sheet extent (white shaded extent with blue flow lines) proposed by Hughes et al. (75) [modified from Jakobsson et al. (7) and Geibert et al. (3)]. - Science Advances](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/07/Ice-World-Oceanography-The-Arctic.png?resize=1200%2C718&ssl=1)
For years, scientists have debated whether a giant thick ice shelf once covered the entire Arctic Ocean during the coldest ice ages.
Climate change
Posted inAtmospheres, Climate, Weather, Biosignatures & Paleobiology, Extinction events, Fossils & Paleontology, Gaia - Planetary Perspectives, Impact events, Meteorites & Asteroids, Press Release
New Fossils From Earth’s Most Famous Extinction Show Climate Tipping Point Was Crossed
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Posted inAnalog Studies, Arctic / Antarctic / Alpine, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Gaia - Planetary Perspectives, Habitable Zones, Icy Worlds, Press Release, Water/Hycean Worlds & Oceanography
During Snowball Earth Early Life May Have Sheltered In Meltwater Ponds
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Posted inArctic / Antarctic / Alpine, Astropharmacy / Biotechnology, Commercial & Private Sector, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Habitable Zones, Missions & Hardware, Press Release
Basecamp Research Announces Breakthrough Discovery of Over One Million New Species
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Posted inAnalog Studies, Arctic / Antarctic / Alpine, Atmospheres, Climate, Weather, Away Teams & Field Reports, Cryobiology, Exploration Gear & Tech, Icy Worlds, Mapping, Geodesy, Cartography, Bathymetry, Press Release, Tricorders & Sensors
Ice Planet Exploration: Deepest Canadian Ice Core Has Reached Bedrock
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Posted inApps - Games, Arctic / Antarctic / Alpine, Astrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Cryobiology, Extremeophiles and Extreme Environments, Gaia - Planetary Perspectives, Habitable Zones, Icy Worlds, Press Release, Reports, Roadmaps, & Plans, Terraforming & Geoengineering, Water/Hycean Worlds & Oceanography
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Posted inAnalog Studies, Arctic / Antarctic / Alpine, Astrogeology, Atmospheres, Climate, Weather, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Callisto, Cryobiology, Enceladus, Europa, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Jupiter, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, Nomenclature, Systematics, Natural History, Robotics/Rovers/UAVs, Water/Hycean Worlds & Oceanography
Ice Planet Exploration: A Dataset Of Antarctic Ecosystems In Ice-free Lands
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Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Cryobiology, Habitable Zones, Icy Worlds, Mapping, Geodesy, Cartography, Bathymetry, Status Report, Water/Hycean Worlds & Oceanography
Four-million-year Marinoan Snowball Shows Multiple Routes To Deglaciation
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Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Origin & Evolution of Life, Status Report
Archean Methane Cycling and Life’s Co-Evolution: Intertwining Early Biogeochemical Processes and Ancient Microbial Metabolism
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Posted inBiogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Cryobiology, Habitable Zones, Icy Worlds, Mapping, Geodesy, Cartography, Bathymetry, Press Release, Water/Hycean Worlds & Oceanography
How Ancient Glaciers Helped Life Evolve On Earth
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