[Arctic, Antarctic, and Alpine Research] Lake Joyce of the McMurdo Dry Valleys (MDV), Antarctica, contains an endemic copepod population (Diacyclops joycei) that has not been identified from apparently suitable habitats […]
Antarctica
Posted inMeteorites & Asteroids
20 Years Later: The ALH 84001 Debate in Context with Viking’s Results. Lessons Learned and Portals Opened
[Astrobiology via PubMed] This article is an anecdotal recap of lessons learned from the ALH 84001 debate in light of the historical and recent debate over the Viking results.
Posted inCryobiology
Coordinated Proteome-scale Remodeling Underlies Polyextremophilic Survival In Antarctic Cryo-hypersaline Brines
Introduction – Cryo-hypersaline brines combine sub-zero temperatures with near-saturated salinity, creating one of Earth’s most extreme habitats. Antarctic Deep Lake provides a natural model for studying how proteins remain stable […]
Posted inNews Summary Archives, Status Report
Hot life in Antarctica: A Novel Metabolically Versatile Pyrodictiaceae Genus Thriving At A Volcanic–cryosphere–marine Interface
Deception Island fumaroles in Antarctica represent rare environments where extreme heat intersects with cryospheric and marine conditions, creating remarkable environmental gradients.
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Biogeochemical Cycles & Geobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Exploration Gear & Tech, Gaia - Planetary Perspectives, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Polar / Alpine Expeditions, Press Release, Water/Hycean Worlds & Oceanography
Ice Planet Recon: Giant Fan-shaped Geological Structure Discovered Beneath East Antarctica
Editor’s note: there are currently two advanced missions heading for the jovian system – Europa Clipper and ESA Juice – to study icy Europa and the other icy worlds orbiting […]
Posted inArctic / Antarctic / Alpine, Astrochemistry, Away Teams & Field Reports, Imaging & Spectroscopy, Interstellar, Press Release, Sample Return
Astrochemistry: Surrounded by Stardust: Iron-60 Discovery In Antarctic Ice Reveals: Local Interstellar Cloud Leaves Its Mark
Our Solar System is currently passing through the Local Interstellar Cloud, a region of highly diluted gas and dust between the stars.
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Cryobiology, Desert Worlds, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Gravitational Biology, Microgravity, Panspermia, Radiation, Sample Return, Space Life Science, Status Report
Antarctic Microbe Survival Tests Aboard The International Space Station
An international team is sending microbes from Antarctica and Chile to the International Space Station (ISS) to study how they withstand radiation and other spaceflight stressors.
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Cryobiology, Exoplanets, -moons, -comets, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, Polar / Alpine Expeditions, Press Release
Ice Planet Orbital Recon: Greenland’s Changing Ice
Greenland is the world’s largest island and about 80% of its surface is covered by the Greenland Ice Sheet, the second largest ice mass on Earth after the Antarctic Ice […]
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Cryobiology, Desert Worlds, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Mapping, Geodesy, Cartography, Bathymetry, Microbiology & Virology, Planetary Protection & Biosafety, Sample Return, Status Report, Tricorders & Sensors
Dew And Frost Do Not Serve As Water Sources For Rock-dwelling Organisms In The Dry Valleys Of Antarctica
Rock-dwelling chlorolichens and cyanobacteria provide most of the total biomass of the ice-free zone of Antarctica, i.e., the McMurdo Dry Valleys (MDV), and yet, the water sources of MDV are […]
Posted inExploration Gear & Tech, Meteorites & Asteroids, Missions & Hardware, Planetary Protection & Biosafety, Press Release, Sample Return
Contaminants, Including Ink, Detected In Meteorites Suggest Sample Preparation Needs Improving
Several contaminants, including traces of ink, originating in the preparation of subsamples, have been identified in Martian meteorites by the EHU’s research group. The finding highlights the importance of stricter […]