![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.
Oceanography
Posted inAstrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Habitable Zones, Origin & Evolution of Life, Press Release
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Posted inAnalog Studies, Astrochemistry, Astrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Enceladus, Icy Worlds, Status Report, Water/Hycean Worlds & Oceanography
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Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Gaia - Planetary Perspectives, Habitable Zones, Press Release, Water/Hycean Worlds & Oceanography
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Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Gaia - Planetary Perspectives, Habitable Zones, Press Release, Water/Hycean Worlds & Oceanography
Massive Burps Of Carbon Dioxide Led To Oxygen-less Ocean Environments In The Deep Past
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Posted inAway Teams & Field Reports, Exploration Gear & Tech, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Press Release, Robotics/Rovers/UAVs, ROVs/Submersibles/Diving, Sample Return, Water/Hycean Worlds & Oceanography
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Posted inAnalog Studies, Away Teams & Field Reports, Exploration Gear & Tech, Missions & Hardware, ROVs/Submersibles/Diving, Sample Return, Status Report, Water/Hycean Worlds & Oceanography
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Posted inAstropharmacy / Biotechnology, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Microbiology & Virology, Press Release, Water/Hycean Worlds & Oceanography
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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 inGaia - Planetary Perspectives, Intelligence & Language, Press Release, ROVs/Submersibles/Diving, SETI & Technosignatures, Societal Issues, Water/Hycean Worlds & Oceanography
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