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

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, Caves, Craters, Mountains, Subsurface, Lava Tubes, Cryobiology, Extremeophiles and Extreme Environments, Microbiology & Virology, Polar / Alpine Expeditions, Press Release

CRREL Researchers Discover New Microbe Species Frozen In Alaskan Permafrost

Research microbiologists at the U.S. Army Engineer Research and Development Center’s Cold Regions Research and Engineering Laboratory (CRREL) recently discovered 26 new species of microorganisms.

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biophysics, Biosignatures & Paleobiology, Cryobiology, Microbiology & Virology, Planetary Protection & Biosafety, Sample Return, Status Report

Characterizing Microbial Communities in >7000- and >180,000-Year-Old Antarctic Permafrost Using a Low-Biomass Decontamination Protocol

The McMurdo Dry Valleys may harbor diverse surface microbial communities, yet little is known about subsurface microorganisms in permafrost and their potential for paleoecological reconstruction.

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Cryobiology, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Mapping, Geodesy, Cartography, Bathymetry, Mars, Status Report

Humidity Enhancement in Dry Permafrost: The Effects of Temperature Cycles on Habitability

The search for life in the solar system often focuses on water and on environments where habitable conditions exist, persistently or occasionally.

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Biosignatures & Paleobiology, Cryobiology, Extremeophiles and Extreme Environments, Fossils & Paleontology, Icy Worlds, Mars, Sample Return, Status Report

Earth to Mars: A Protocol for Characterizing Permafrost in the Context of Climate Change as an Analog for Extraplanetary Exploration

Permafrost is important from an exobiology and climate change perspective. It serves as an analog for extraplanetary exploration, and it threatens to emit globally significant amounts of greenhouse gases as […]

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Cryobiology, Dale Andersen's Field Reports, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Polar / Alpine Expeditions, ROVs/Submersibles/Diving, Sample Return, Status Report, Tricorders & Sensors, Water/Hycean Worlds & Oceanography

Dale Andersen’s Astrobiology Antarctic Research: Permafrost And Ground-ice Conditions in the Untersee Oasis, Queen Maud Land, East Antarctica (Paper)

Keith’s note: Astrobiologist Dale Andersen is back in Antarctica at Lake Untersee in October-December 2024 for another field season of research (preview). Dale’s work is coordinated through the SETI Institute. […]

Posted inBiochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Cryobiology, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Habitable Zones, Icy Worlds, Microbiology & Virology, Status Report

Prevalence of the Calvin-Benson-Bassham Cycle in Chemolithoautotrophic Psychrophiles and the Potential for Cold-adapted Rubisco

The act of fixing inorganic carbon into the biosphere is largely facilitated by one enzyme, Rubisco. Beyond well-studied plants and cyanobacteria, many bacteria use Rubisco for chemolithoautotrophy in extreme environments […]

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biosignatures & Paleobiology, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Habitable Zones, Icy Worlds, Microbiology & Virology, Polar / Alpine Expeditions, Status Report

Active Microbiota Persist in Dry Permafrost and Active Layer from Elephant Head, AntarcticaI

Dry permafrost is a challenging environment for microbial life due to cold, dry, and often oligotrophic conditions. In 2016, Elephant Head, Antarctica, was confirmed as the second site on Earth […]

Posted inArctic / Antarctic / Alpine, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Cryobiology, Gaia - Planetary Perspectives, Habitable Zones, Icy Worlds, Polar / Alpine Expeditions, Press Release, Terraforming & Geoengineering, Water/Hycean Worlds & Oceanography

Preserving Our Home World’s Cryosphere: World Meteorological Organization

Editor’s note: The Astrobiology community is all excited about two missions that wil; explore the ice worlds orbiting Jupiter with a focus of understanding their potential to host habitable – […]

Posted inAstrochemistry, Astrogeology, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Mars, Missions & Hardware, Press Release, Tricorders & Sensors

Why Is Methane Seeping on Mars? NASA Scientists Have New Ideas

A recent paper may help explain why a portable chemistry lab on NASA’s Curiosity rover has continually sniffed out traces of the gas near the surface of Gale Crater.

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