Discrepancies have emerged concerning the application of sulfur stable isotope ratios as a biosignature in impact crater paleolakes.
hydrothermal
Posted inAway Teams & Field Reports, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Microbiology & Virology, Reports, Roadmaps, & Plans, Robotics/Rovers/UAVs, ROVs/Submersibles/Diving, Status Report, Water/Hycean Worlds & Oceanography
The NASA Roadmap To Ocean Worlds
In this article, we summarize the work of the NASA Outer Planets Assessment Group (OPAG) Roadmaps to Ocean Worlds (ROW) group. The aim of this group is to assemble the […]
Posted inAstrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Comets and Asteroids, Meteorites & Asteroids, Origin & Evolution of Life, Status Report
Gamma-Ray-Induced Amino Acid Formation During Aqueous Alteration in Small Bodies: The Effects of Compositions of Starting Solutions
Organic compounds, such as amino acids, are essential for the origin of life, and they may have been delivered to the prebiotic Earth from extra-terrestrial sources, such as carbonaceous chondrites.
Posted inAstrogeology, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Caves, Craters, Mountains, Subsurface, Lava Tubes, Extremeophiles and Extreme Environments, Habitable Zones, Microbiology & Virology, Origin & Evolution of Life, Press Release
Yellowstone Hydrothermal System Examined In Unprecedented Detail
University of Wyoming Department of Geology and Geophysics Professor Ken Sims made his mark as a National Geographic Explorer conducting research in some of the world’s most extreme locations, from […]
Posted inExtremeophiles and Extreme Environments, Habitable Zones, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Microbiology & Virology, Press Release
Planetary Astrobiology Surveys: Mapping Hydrothermal Areas From Orbit
Using high-resolution commercial satellite images to help map and monitor Yellowstone’s Thermal Areas
Posted inBiogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Microbiology & Virology, ROVs/Submersibles/Diving, Status Report, Water/Hycean Worlds & Oceanography
Protecting The Lost City Hydrothermal Vent System
Lost City is a unique marine hydrothermal vent field in Area Beyond National Jurisdiction on the front line of deep-sea features that policy-makers should seek to protect.
Posted inBiochemistry & Organic Chemistry, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Imaging & Spectroscopy, Status Report
Searching For Life In Hot Spring Carbonate Systems: Investigating Raman Spectra Of Carotenoid-Bearing Organic Carbonaceous Inclusions From Travertines Of Italy
Carotenoid pigments provide some of the most common exclusively biogenic markers on Earth, and these organic pigments may be present in extraterrestrial life. Raman spectroscopy can be used to identify […]
Posted inAway Teams & Field Reports, Extremeophiles and Extreme Environments, Microbiology & Virology, Status Report
Taxonomic Diversity Of Microbial Communities In Sub-seafloor Hydrothermal Sediments Of The Active Santorini-Kolumbo Volcanic Field
Introduction: Active hydrothermal vents of volcanic origin provide a remarkable manifestation of life on Earth under extreme conditions, which may have consequences for our understanding of habitability on other terrestrial […]
Posted inEnceladus, Icy Worlds, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Bathymetry, Press Release, Stellar Cartography, Water/Hycean Worlds & Oceanography
New Global Topographic Map Unveils Unique Distortions On Enceladus
A team of scientists has produced the first complete and comprehensive global topographic map of Saturn’s active icy moon Enceladus, revealing that it is even more distorted than previously thought. […]
![Examples of prebiotic analogue conditions. (A) A boiling, hydrothermal pool on Mount Mutnovsky, an active volcano south of Petropavlovsk, Kamchatka, Russia. The author is pointing at a membranous froth produced by myristic acid added to the pool [4]. Photo credit: Tony Hoffman). (B) Hydrothermal water in Bumpass Hell on Mount Lassen, California (photograph by author). (C) Hydrothermal pools in Hell’s Gate, near Rotorua, New Zealand (Photograph by author). (D) Fly Geyser in the Black Rock playa of northern Nevada (credit: Bruce Damer). -- Life](https://i0.wp.com/astrobiology.com/wp-content/uploads/2023/09/Template.png?resize=1200%2C720&ssl=1)
Posted inExtremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Microbiology & Virology, Origin & Evolution of Life, Status Report
Template-Directed Replication and Chiral Resolution during Wet–Dry Cycling in Hydrothermal Pools
The commonly supposed template-based format for RNA self-replication requires both duplex assembly and disassembly.