This scarp at the edge of the North Polar layered deposits of Mars is the site of the most frequent frost avalanches seen by HiRISE.
arctic
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Astrogeology, Away Teams & Field Reports, Biosignatures & Paleobiology, Exploration Gear & Tech, Fossils & Paleontology, Imaging & Spectroscopy, Lava / magma ocean / Volcanic Worlds, Mapping, Geodesy, Cartography, Bathymetry, Press Release, Tricorders & Sensors
USGS Away Team: A Martian Landscape Right At Home
Sitting in the middle of a vast landscape, bordered by a ridge and filled with loose rocks, Lauren Edgar held a hand lens to her eye as she peered at […]
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Astrogeology, Europa, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Press Release
Iceworld Update: Hidden Snow Dunes In Antarctica
Sand dunes are a familiar sight along beaches and in deserts. While we know how regular sand dunes are formed, much less is known about dunes made of snow. In […]
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Cryobiology, Europa, Ganymede, Habitable Zones, Icy Worlds, Mapping, Geodesy, Cartography, Bathymetry, ROVs/Submersibles/Diving, Status Report, Water/Hycean Worlds & Oceanography
Ice Planet Update: Arctic Sea Ice Near Historic Low – Antarctic Ice Continues Decline
Editor’s note: we live on a world that is mostly an ocean world, part Icy world, part desert world etc. Other worlds in our solar system exhibit both similar and […]
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Europa, Icy Worlds, Status Report
Molecular Biosignatures In Planetary Analogue Salts: Implications for Transport of Organics in Sulfate-rich Brines Beyond Earth
Salts formed during evaporation or freezing of brines can potentially incorporate organic matter that can inform about past biological activity. We analysed the lipid fraction preserved within the contemporary Lost […]
Posted inArctic / Antarctic / Alpine, Cryobiology, Icy Worlds, Press Release, Water/Hycean Worlds & Oceanography
Iceworld Update: New Project To Unlock Earth Life’s Secrets In Extreme Cold
Cambridge researchers are set to explore the uncharted depths of life in the extreme cold, with findings that could reshape our understanding of biology and pave the way for future […]
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Cryobiology, Exploration Gear & Tech, Icy Worlds, Mapping, Geodesy, Cartography, Bathymetry, Press Release, Robotics/Rovers/UAVs, ROVs/Submersibles/Diving, Water/Hycean Worlds & Oceanography
Iceworld Exploration: Underwater Droids Venture Deep Below Polar Ice
Called IceNode, the project envisions a fleet of autonomous robots that would help determine the melt rate of ice shelves.
Posted inAnalog Studies, Arctic / Antarctic / Alpine, Away Teams & Field Reports, Exploration Gear & Tech, Habitable Zones, Icy Worlds, Mapping, Geodesy, Cartography, Bathymetry, Press Release
Astrobiology Away Team: NASA ORCAA Field Work In Alaska
A group of researchers from NASA’s Jet Propulsion Laboratory and other institutions spent two weeks on a glacier in Alaska in July 2023 for a project called ORCAA (Ocean Worlds […]
![Rubisco form II structural differences between T. arctica UC1 and H. marinus. A) AlphaFold-generated [51,52] structures for H. marinus (transparent white) and T. arctica UC1 RbcII (dark blue) dimers aligned with ChimeraX [53]. Active sites colored red. Arrows point to the additional exposed active site residues in UC1 compared to H. marinus. The missing residues in UC1 at amino acid positions 78–82 (Fig. 4) are colored yellow on H. marinus structure (close44 up view in B). C) UC1 form II dimer with residue differences to H. marinus that confer a semi45 conservative or non-conservative change highlighted in orange.-- biorxiv.org](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/08/Prevalence-of-the-Calvin.png?resize=1200%2C720&ssl=1)
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 inAI - Data - Apps - Cybernetics, Analog Studies, Apps - Games, Arctic / Antarctic / Alpine, Education and Outreach, Exploration Gear & Tech, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, Nomenclature, Systematics, Natural History, Press Release, ROVs/Submersibles/Diving, Water/Hycean Worlds & Oceanography
Ice Planet Update: Digital Twin Of RRS Discovery Shows How Antarctic Research Began
A project led by the University of Southampton has created a ‘digital twin’ of RRS Discovery – the pioneering research vessel that first took explorers Robert Falcon Scott and Ernest […]