cryobiology
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Researchers Uncover Hidden Genetic World in Antarctic Waters

by Keith Cowing

The researchers analyzed DNA from water samples collected throughout the Southern Ocean during a three-month expedition in late 2016 and early 2017. After sequencing the DNA, they cross-referenced their results […]

Posted inArctic / Antarctic / Alpine, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Habitable Zones, Icy Worlds, Microgravity, Press Release, Water/Hycean Worlds & Oceanography

Erosion Of Iceberg A-23A Sparks A Surge Of Microscopic Life

by Keith Cowing

Iceberg A-23A has had a more eventful run than most of the large Antarctic icebergs that have calved from the continent’s ice shelves in recent decades. Over its winding, forty-plus-year […]

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Biophysics, Biosignatures & Paleobiology, Cryobiology, Europa, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Habitable Zones, Icy Worlds, Microbiology & Virology, Press Release, Water/Hycean Worlds & Oceanography

Microbes From Ambient-pressure Analogues Offer Insights Into Possible Life In Europa’s High-pressure Subsurface Ocean

by Keith Cowing

Under its thick ice layer, Europa contains a shielded liquid water ocean where habitable conditions may exist. To effectively assess the habitability of this environment and the implications on putative […]

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Astronauts and Explorers, Away Teams & Field Reports, Biosignatures & Paleobiology, Cryobiology, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Microgravity, People Of Astrobiology, Press Release, ROVs/Submersibles/Diving, Sample Return, Water/Hycean Worlds & Oceanography

Antarctic Microbial Mats: A Research Dive At Minus 20 Degrees Air Temperature

by Keith Cowing

Lake Fryxell is located in the McMurdo Dry Valley on the Antarctic mainland. The lake is covered year round with four to five metres of ice, and it has some […]

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, 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

by Keith Cowing

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, Biosignatures & Paleobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Cryobiology, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Mapping, Geodesy, Cartography, Bathymetry, Microbiology & Virology, Sample Return, Status Report, Tricorders & Sensors

Setting A Polyphasic Approach To Study Antarctic Cryptoendolithic Communities As A Toolkit For Astrobiology

by Keith Cowing

The present study has set up a pilot experiment to optimise the most promising assays for investigating the survival of Antarctic microbial cryptoendolithic communities – a natural astrobiological benchmark – […]

Posted inArctic / Antarctic / Alpine, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Cryobiology, Europa, Habitable Zones, Icy Worlds, Jupiter, Press Release, Water/Hycean Worlds & Oceanography

Jupiter’s Moon Europa Has A Seafloor That May Be Quiet And Lifeless

by Keith Cowing

The giant planet Jupiter has nearly 100 known moons, yet none have captured the interest and imagination of astronomers and space scientists quite like Europa, an ice-shrouded world that is […]

Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Biophysics, Biosignatures & Paleobiology, Cryobiology, Extremeophiles and Extreme Environments, Habitable Zones, Microbiology & Virology, Sample Return, Status Report

Cytoplasmic Fluidity And The Cold Life: Proteome Stability Is Decoupled From Viability In Psychrophiles

by Keith Cowing

Protein diffusion, critical for cellular metabolism, occurs in the highly crowded cytoplasm. Understanding how this dynamics changes when organisms are adapted to different thermal niches is a fundamental challenge in […]

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

Subzero Cell Division, Respiration, And Genomic Traits Of Cryophilic Arthrobacter agilis Ant-EH-1 Isolated From Cold-arid Antarctic Mineral Soils

by Keith Cowing

Arthrobacter are commonly isolated from cold soil environments globally, including those that regularly reach sub-freezing temperatures, suggesting that Arthrobacter have significant potential for growth and activity under temperature and stress […]

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