Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biosignatures & Paleobiology, Cryobiology, Exploration Gear & Tech, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, Robotics/Rovers/UAVs, ROVs/Submersibles/Diving, Water/Hycean Worlds & Oceanography

ENDURANCE Robot Dives Into Ice-covered Lake Bonney In Antarctica

The robot that scientists deployed last year into ice-covered Lake Bonney in Antarctica’s McMurdo Dry Valleys isn’t small.

Posted inEducation and Outreach, Extremeophiles and Extreme Environments, Origin & Evolution of Life, Water/Hycean Worlds & Oceanography

2 PhD Student and 2 Postdoctoral Researcher Positions- Hydrothermal Activity on the Mid-Cayman Spreading Center

Starting January 1, 2009, a new 4-year program will investigate hydrothermal systems on the Mid-Cayman Spreading Center (MCSC) under NASA’s ASTEP program – a joint collaboration between Woods Hole Oceanographic […]

Posted inExtremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Journal articles, Mars, Water/Hycean Worlds & Oceanography

Hydrogeologic Controls on Episodic H2 Release from Precambrian Fractured Rocks–Energy for Deep Subsurface Life on Earth and Mars

Astrobiology December 2007, 7(6): 971-986 http://www.liebertonline.com/doi/pdfplus/10.1089/ast.2006.0096 Dissolved H2 concentrations up to the mM range and H2 levels up to 9-58% by volume in the free gas phase are reported for […]

Posted inExtremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Journal articles, Water/Hycean Worlds & Oceanography

Geochemical Constraints on Sources of Metabolic Energy for Chemolithoautotrophy in Ultramafic-Hosted Deep-Sea Hydrothermal Systems

Astrobiology December 2007, 7(6): 933-950 http://www.liebertonline.com/doi/pdfplus/10.1089/ast.2006.0119 Numerical models are employed to investigate sources of chemical energy for autotrophic microbial metabolism that develop during mixing of oxidized seawater with strongly reduced […]

Posted inExtremeophiles and Extreme Environments, Journal articles, Water/Hycean Worlds & Oceanography

Temporal Changes in Fluid Chemistry and Energy Profiles in the Vulcano Island Hydrothermal System

Astrobiology December 2007, 7(6): 905-932 http://www.liebertonline.com/doi/pdfplus/10.1089/ast.2007.0128 In June 2003, the geochemical composition of geothermal fluids was determined at 9 sites in the Vulcano hydrothermal system, including sediment seeps, geothermal wells, […]

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