hydrothermal vent
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Habitable Zones, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Origin & Evolution of Life, ROVs/Submersibles/Diving, Status Report

Magnesium Silicate Chimneys at the Strytan Hydrothermal Field, Iceland, as Analogues for Prebiotic Chemistry at Alkaline Submarine Hydrothermal Vents on the Early Earth

by Keith Cowing

The Strytan Hydrothermal Field (SHF) in basaltic terrain in Iceland is one of the extant alkaline submarine hydrothermal vent systems favoured as analogues for where life on Earth may have […]

Posted inAI - Data - Apps - Cybernetics, Away Teams & Field Reports, Biosignatures & Paleobiology, Exploration Gear & Tech, Habitable Zones, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Robotics/Rovers/UAVs, ROVs/Submersibles/Diving, Sample Return, Status Report, Tricorders & Sensors, Water/Hycean Worlds & Oceanography

Away Team Deep-Sea Datasets: Long-Term Visual Localization Of The Eiffel Tower Hydrothermal Vent

by Keith Cowing

Visual localization plays an important role in the positioning and navigation of robotics systems within previously visited environments.

Posted inBiochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, Origin & Evolution of Life, Press Release, Robotics/Rovers/UAVs, ROVs/Submersibles/Diving, Sample Return, Tricorders & Sensors, Water/Hycean Worlds & Oceanography

Simulations Show How Low Gravity On Ocean Worlds Might Help To Sustain Warm Water Circulation For Millions Of Years

by Keith Cowing

A new study led by team members at UC Santa Cruz have used a complex computer model to investigate how the influence of low gravity, as found on ocean worlds […]

Posted inBiogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Habitable Zones, Microbiology & Virology, Press Release, ROVs/Submersibles/Diving, Water/Hycean Worlds & Oceanography

Newly Discovered Hydrothermal Vents At Depths Of 3,000 Meters Off Svalbard

by Keith Cowing

Hydrothermal vents are seeps on the sea floor from which hot liquids escape. “Water penetrates into the ocean floor where it is heated by magma. The overheated water then rises […]

Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Enceladus, Europa, Exoplanets, -moons, -comets, Gravitational Biology, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, ROVs/Submersibles/Diving, Status Report, Water/Hycean Worlds & Oceanography

Sustaining Hydrothermal Circulation With Gravity Relevant to Ocean Worlds

by Keith Cowing

Some ocean worlds may sustain active, seafloor hydrothermal systems, but the characteristics and controls on fluid-heat transport in these systems are not well understood.

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Enceladus, Europa, Exoplanets, -moons, -comets, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Microbiology & Virology, Origin & Evolution of Life, Press Release, ROVs/Submersibles/Diving, Water/Hycean Worlds & Oceanography

Hydrothermal Vents On The Seafloors Of Ocean Worlds Could Support Life

by Keith Cowing

We’ve all seen the surreal footage in nature documentaries showing hydrothermal vents on the frigid ocean floor—bellowing black plumes of super-hot water—and the life forms that cling to them. Now, […]

Posted inAstrogeology, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Fossils & Paleontology, Imaging & Spectroscopy, Microbiology & Virology, Status Report

Nanoparticulate Apatite and Greenalite In The Oldest, Well-preserved Hydrothermal Vent Precipitates

by Keith Cowing

Paleoarchean jaspilites are used to track ancient ocean chemistry and photoautotrophy because they contain hematite interpreted to have formed following biological oxidation of vent-derived Fe(II) and seawater P-scavenging.

Posted inBiochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Microbiology & Virology, Press Release, ROVs/Submersibles/Diving, Sample Return, Water/Hycean Worlds & Oceanography

Giant Deep-sea Vent Tubeworm Symbionts Use Two Carbon Fixation Pathways To Grow At Record Speeds

by Keith Cowing

In the deep-sea environment of the East Pacific Rise, where sunlight does not penetrate and the surroundings are known for their extreme temperatures, skull-crushing pressures, and toxic compounds, lives Riftia […]

Posted inAstrogeology, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Extremeophiles and Extreme Environments, Habitable Zones, Impact events, Origin & Evolution of Life, Status Report

A Surface Hydrothermal Source of Nitriles and Isonitriles

by Keith Cowing

Giant impacts can generate transient hydrogen-rich atmospheres, reducing atmospheric carbon. The reduced carbon will form hazes that rain out onto the surface and can become incorporated into the crust. Once […]

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