Earth’s water, intrinsic oxidation state, and metal core density are fundamental chemical features of our planet. Studies of exoplanets provide a useful context for elucidating the source of these chemical […]
geology
Posted inAway Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Enceladus, Europa, Extremeophiles and Extreme Environments, Press Release, Robotics/Rovers/UAVs, ROVs/Submersibles/Diving, Water/Hycean Worlds & Oceanography
Pythia’s Oasis Has Warm liquid Spewing From The Seafloor Offering Clues To Earthquake Hazards
Editor’s note: Pythia’s Oasis is a newly-discovered seafloor seep off the coast of Oregon featuring water with a unique composition from an exceptionally deep location inside Earth. A varied ecosystem […]
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Habitable Zones, Press Release
Was Plate Tectonics Occurring When Life First Formed On Earth?
Earth is a dynamic and constantly changing planet. From the formation of mountains and oceans to the eruption of volcanoes, the surface of our planet is in a constant state […]
Posted inAstrogeology, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Press Release
Tracking Carbon On Our Planet From Orbit
Whether in plants or animals, greenhouse gases or smoke, carbon atoms exist in various compounds as they move through a multitude of pathways within Earth’s system.
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Mars, Press Release
Solid‒gas Carbonate Formation During Dust Events On Mars
A joint research team led by Dr. Xiaohui Fu and Dr. Zhongchen Wu from Shandong University, China, proposed a new carbonate formation mechanism in Martian dust activities based on simulation […]
Posted inAnalog Studies, Astrogeology, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Press Release
Astrobiology Away Team Training: For The Love Of Martian Soil
For Elizabeth Rampe, a planetary geologist in NASA Johnson Space Center’s Astromaterials Research and Exploration Science (ARES) division, science isn’t just a passion—it could very well be in her DNA.
Posted inAnalog Studies, Astrogeology, Exoplanets, -moons, -comets, Status Report
Comparisons Of The Core And Mantle Compositions Of Earth Analogs From Different Terrestrial Planet Formation Scenarios
The chemical compositions of Earth’s core and mantle provide insight into the processes that led to their formation. N-body simulations, on the other hand, generally do not contain chemical information, […]
Posted inBiochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Genomics, Proteomics, Bioinformatics, Origin & Evolution of Life, Press Release
The Role Of Minerals In The Early Stage Of The Hadean Earth
In particular, the interaction between functional ribozymes and ancient minerals under simulated primitive conditions is a recent research focus.
Posted inAstrogeology, Biosignatures & Paleobiology, Fossils & Paleontology, Microbiology & Virology, Press Release
Finding Evidence Of Past Life In Serpentinite Rock
NASA-supported researchers have provided new insights into microorganisms that survive on products from serpentinization reactions.
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Habitable Zones, Press Release
Sedimentary Rock Chert Records Cooling Of Earth Over Billions Of Years
Several billion years ago, the oceans were probably not as hot as often assumed, but were instead at much more moderate temperatures.