Posted inBiogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Europa, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Jupiter, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, Origin & Evolution of Life, Status Report, Tricorders & Sensors, Water/Hycean Worlds & Oceanography

Biomarkers on the Icy Jovian Moons: Can Europa Also Provide Insights into Life’s Origin?

Within the payloads of JUICE and Europa Clipper, there are instruments suitable for the search of specific biosignatures that can diagnose life tracks in two ways.

Posted inAnalog Studies, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Europa, Exoplanets, -moons, -comets, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Status Report, Water/Hycean Worlds & Oceanography

The Fate of Frozen Carbonated Water at Europa-like Conditions

We present the results of experiments probing the retention of CO2 in crystalline water ice, frozen sodium chloride (NaCl) brines, and flash-frozen carbonated water using diffuse reflectance infrared spectroscopy.

Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Habitable Zones, Mapping, Geodesy, Cartography, Bathymetry, Press Release, Sample Return, Water/Hycean Worlds & Oceanography

Extensive Freshened Water Beneath Earth’s Ocean Floor Confirmed For The First Time

The goal of this expedition went far beyond collecting sediment cores. Scientists also set out to sample the water stored within the sediments, including from sandy layers that act as […]

Posted inAstrochemistry, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report, Water/Hycean Worlds & Oceanography

The Ocean Worlds Science Case For The Pollux Spectropolarimeter

Pollux is a candidate European instrument contribution to the Habitable Worlds Observatory (HWO), designed to advance our understanding of the formation and evolution of cosmic structures in the universe, and […]

Posted inArctic / Antarctic / Alpine, Away Teams & Field Reports, Biosignatures & Paleobiology, Cryobiology, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Habitable Zones, Icy Worlds, Missions & Hardware, Press Release, ROVs/Submersibles/Diving, Sample Return, Water/Hycean Worlds & Oceanography

Researchers Uncover Hidden Genetic World in Antarctic Waters

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 inAstrochemistry, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Reports, Roadmaps, & Plans, Status Report, Water/Hycean Worlds & Oceanography

Ocean Worlds Working Group (OWWG) Draft Traceability Available For Community Comment

The Ocean Worlds Working Group (OWWG) has released a draft traceability matrix that defines the OWWG’s driving science questions for future Ocean Worlds exploration, and the science investigations, measurements, instruments, […]

Posted inAway Teams & Field Reports, Biosignatures & Paleobiology, Education and Outreach, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Life Support Systems, Missions & Hardware, People Of Astrobiology, Press Release, ROVs/Submersibles/Diving, Tricorders & Sensors, Video, Audio, Webcasts, Podcasts, Water/Hycean Worlds & Oceanography

Ocean Planet Recon: ASU Expedition Finds An Aquatic World Teeming With Life

Imagine descending nearly a mile and a half into a watery abyss, watching the sunlight disappear as the world around you turns completely black. Then suddenly, you find yourself surrounded […]

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

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, Biosignatures & Paleobiology, Cryobiology, Enceladus, Europa, Exoplanets, -moons, -comets, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Habitable Zones, Icy Worlds, Microbiology & Virology, Missions & Hardware, Panspermia, Planetary Protection & Biosafety, Press Release, Reports, Roadmaps, & Plans, Sample Return, Tricorders & Sensors, Water/Hycean Worlds & Oceanography

Survival Limits Of Psychrotolerant Microorganisms With Relevance For Planetary Protection Of The Icy Moons

Investigating the survival limits of extremophilic microorganisms exposed to simulated space conditions can shed light on the ability of terrestrial microorganisms to survive and propagate on other planetary bodies.

Posted inAtmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Gaia - Planetary Perspectives, Habitable Zones, Status Report, Water/Hycean Worlds & Oceanography

Slowing Planetary Rotation Influences Ocean Nutrient Cycling And Oxygenation

Marine habitability for complex life on Earth and Earth-like planets requires bioavailable nutrients and dissolved oxygen. The cycling of nutrients and oxygen is controlled by physical ocean circulation.

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