June 2024 – Page 5 – My WordPress Site

A First Order Filter For The Detection of Potentially Habitable Exoplanets -- Grok via Astrobiology.com

Astrogeology, Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Extremeophiles and Extreme Environments, Fossils & Paleontology, Imaging & Spectroscopy, Microbiology & Virology

Nanoparticulate Apatite and Greenalite In The Oldest, Well-preserved Hydrothermal Vent Precipitates

by Keith CowingJune 25, 2024June 25, 2024

Astrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Imaging & Spectroscopy

Detection Of Possible Glycine Precursor Molecule Methylamine Towards The Hot Molecular Core G358.93−0.03 MM1

by Keith CowingJune 25, 2024June 25, 2024

Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Caves, Craters, Mountains & Lava Tubes, Exploration Gear & Tech, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Missions & Hardware, Sample Return, Tricorders & Sensors, Water/Hycean Worlds & Oceanography

ESA Away Team Training: Land of Fire – Lanzarote, Canary Islands

by Keith CowingJune 25, 2024June 25, 2024

An example of a simulated spectrum for a Proterozoic Earth–like planet, in which no single feature dominates but absorption from numerous molecules is visible, including O2 and O3. The N2O features (shown in brown) appear at multiple wavelengths beyond 1 μm. Source: Tokadjian et al. (2024); image used unchanged under the CC BY 4.0 license. -- Science Direct

Away Teams & Field Reports, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exploration Gear & Tech, Fossils & Paleontology, Mapping, Geodesy, Cartography, Microbiology & Virology, Origin & Evolution of Life

Operational Report: Drilling In The Moodies Group of the Barberton Greenstone Belt (BASE – Barberton Archean Surface Environments)

by Keith CowingJune 25, 2024June 25, 2024

(d) Cryo-ET slice through a cell body of early-log phase Ca. Y. umbracryptum with multiple intracellular vesicles. Scale bar: 100 nm. (e) Semantic segmentation of the tomogram shown in panel d) depicting the cell membrane (pink), cell-surface proteins (pale green), pili (blue), ribosomes (grey), cytoskeletal filaments (yellow) and intracellular vesicles (orange). Scale bar: 100 nm. -- biorxiv.org

AI - Data - Apps - Cybernetics, Astrochemistry, Astronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Nomenclature, Systematics, Natural History, Stellar Cartography

Exoplanet Host Star Classification: Multi-Objective Optimisation Of Incomplete Stellar Abundance Data

by Keith CowingJune 25, 2024June 25, 2024

A team of Japanese and US scientists have discovered the bio-essential sugars ribose and glucose in samples of asteroid Bennu that were collected by NASA’s OSIRIS-REx mission. This finding builds on the earlier discovery of nucleobases (the genetic components of DNA and RNA), phosphate, and amino acids (the building blocks of proteins) in the Bennu samples, showing that the molecular ingredients of life could have been delivered to early Earth by meteorites. Download this graphic from NASA’s Scientific Visualization Studio website: https://svs.gsfc.nasa.gov/14932 NASA/Goddard/University of Arizona/Dan Gallagher

Analog Studies, Away Teams & Field Reports, Biophysics, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Microbiology & Virology, Origin & Evolution of Life

A Metagenome From a Steam Vent in Los Azufres Geothermal Field Shows an Abundance of Thermoplasmatales Archaea and Bacteria from the Phyla Actinomycetota and Pseudomonadota

by Keith CowingJune 25, 2024June 25, 2024

Energy levels of 2,5-CT and 2,4-CT relative to thiophenol. The geometries and energies were derived at CAM-B3LYP/cc-pCV5Z level of theory. -- astro-ph.GA

Astrogeology, Away Teams & Field Reports, Caves, Craters, Mountains & Lava Tubes, Exploration Gear & Tech, Mapping, Geodesy, Cartography, People Of Astrobiology, Tricorders & Sensors

ESA Away Team Training In Sardinian Caves

by Keith CowingJune 24, 2024June 24, 2024

Distribution of Pyl in archaea.

Astrochemistry, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, TRAPPIST-1, Water/Hycean Worlds & Oceanography

Transmission Spectroscopy of the Habitable Zone Exoplanet LHS 1140 b with JWST/NIRISS

by Keith CowingJune 24, 2024June 24, 2024

Examples of mapped large drainage systems on Mars

Astronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy

The High-contrast Performance of the Keck Planet Imager and Characterizer

by Keith CowingJune 24, 2024June 24, 2024

Locations of the five stars (yellow circles) that dominate the ionization of the local clouds, shown in Galactic coordinates

Astrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Ceres, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy

New Candidates for Organic-rich Regions on Ceres

by Keith CowingJune 24, 2024June 24, 2024