Arctic / Antarctic / Alpine
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Habitable Zones, Mapping, Geodesy, Cartography, Bathymetry, Microbiology & Virology, Origin & Evolution of Life, ROVs/Submersibles/Diving, Sample Return, Status Report, Water/Hycean Worlds & Oceanography

Aurora Vent Field Is A Hotspot For Microbial Hydrogen Oxidation In The Arctic Ocean

by Keith Cowing

Molecular hydrogen (H2) is a widespread, energetically efficient reductant supporting microbial metabolism across most known ecosystems. Although seafloor hydrothermal vents are major energy providers for H2-oxidizing microorganisms, the diversity of […]

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Microbiology & Virology, Polar / Alpine Expeditions, Sample Return, Status Report

Genomic Adaptations Of Novel Halotolerant Bacteria From Extreme North Greenland

by Keith Cowing

Peary Land, northern-most Greenland, is a cold desert region whose soil microbiome remains underexplored. This is the first study to explore the halotolerant soil microbiome of this region with culture-dependent […]

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Cryobiology, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Status Report

Ice Planet Recon: Glacier Surface Lowering And Subglacial Outflow Coincide With Blood Falls Discharge In The McMurdo Dry Valleys

by Keith Cowing

Blood Falls is a unique feature that appears at the snout of the Taylor Glacier in the upper Taylor Valley, East Antarctica.

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Caves, Craters, Mountains, Subsurface, Lava Tubes, Desert Worlds, Exploration Gear & Tech, Icy Worlds, Lava / magma ocean / Volcanic Worlds, Mapping, Geodesy, Cartography, Bathymetry, Planetary Protection & Biosafety, Polar / Alpine Expeditions, Robotics/Rovers/UAVs, Sample Return, Status Report, Titan, Tricorders & Sensors, Water/Hycean Worlds & Oceanography

Terrestrial Analogs To Titan For Geophysical Research

by Keith Cowing

Saturn’s moon Titan exhibits remarkable parallels to the Earth in many geophysical and geological processes not found elsewhere in the solar system at the present day.

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Biosignatures & Paleobiology, Cryobiology, Dale Andersen's Field Reports, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Life Support Systems, Mapping, Geodesy, Cartography, Bathymetry, Origin & Evolution of Life, Planetary Protection & Biosafety, Polar / Alpine Expeditions, Sample Return, Status Report, Tricorders & Sensors, Water/Hycean Worlds & Oceanography

Dale Andersen’s Astrobiology Antarctic Status Report: 19 February 2026: Return Overland Traverse From Lake Untersee

by Keith Cowing

Dale: Arrived UAL airbase about 2:45 on UTC/GMT after a 5 hr 45 min drive across the polar landscape! Very windy morning but great ride back!

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Cryobiology, Extinction events, Habitable Zones, Icy Worlds, Mapping, Geodesy, Cartography, Bathymetry, Polar / Alpine Expeditions, Press Release, Water/Hycean Worlds & Oceanography

Understanding Snowball Earth Extreme Climates

by Keith Cowing

In the whole history of Earth’s climate, few events are as extreme as those that geologists call “Snowball Earth.”

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Cryobiology, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Microbiology & Virology, Origin & Evolution of Life, Planetary Protection & Biosafety, Polar / Alpine Expeditions, Status Report, Water/Hycean Worlds & Oceanography

Draft Genomes Of Three Abundant Bacterial Isolates From Hypersaline Don Juan Pond, Antarctica

by Keith Cowing

Don Juan Pond (DJP) is a hypersaline, CaCl2-rich brine within Wright Valley, Antarctica (77.565 S, 161.174 E; 1). DJP is one of the most saline brines on the planet and […]

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Commercial & Private Sector, Cryobiology, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Habitable Zones, Icy Worlds, Microbiology & Virology, Planetary Protection & Biosafety, Sample Return, Status Report

First Genome Sequence And Functional Profiling Of Psychrobacter SC65A.3 Preserved In 5,000-year-old Cave Ice

by Keith Cowing

Introduction: Ancient cryospheric environments may preserve overlooked reservoirs of antimicrobial resistance (AMR) and bioactive potential. This study reports the first whole-genome sequencing and functional characterization of Psychrobacter sp. SC65A.3 isolated […]

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biosignatures & Paleobiology, Cryobiology, Dale Andersen's Field Reports, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Life Support Systems, Mapping, Geodesy, Cartography, Bathymetry, Microbiology & Virology, Missions & Hardware, People Of Astrobiology, Robotics/Rovers/UAVs, ROVs/Submersibles/Diving, Sample Return, Status Report, Tricorders & Sensors, Water/Hycean Worlds & Oceanography

Dale Andersen’s Astrobiology Antarctic Status Report: 18 February 2026: Eclipse Watching And Base Camp Packing

by Keith Cowing

Dale: A partial eclipse over Lake Untersee yesterday—an ordinary piece of celestial clockwork that felt anything but ordinary from the icy shores of Lake Untersee in the mountains of Antarctica. […]

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Astrogeology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Cryobiology, Desert Worlds, Habitable Zones, Icy Worlds, Mapping, Geodesy, Cartography, Bathymetry, Polar / Alpine Expeditions, Press Release, Water/Hycean Worlds & Oceanography

What Cold-water Geysers On Earth Reveal About The Habitability Of Ocean Worlds

by Keith Cowing

In the eastern Utah desert, carbon-dioxide-saturated water bubbles, sprays and foams from the ground. These cold-water geysers, sometimes called ‘soda pop geysers,’ are a new and reliable Earth-based analog for […]

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