September 2024 – Page 2 – My WordPress Site

a–c Raman measurement of the HV wall near a fluid channel. a Overlay of the Raman map with the corresponding SEM image. The Raman map is a superimposed image of three specific peaks. The Raman map shows that the brucite and Mg-carbonate crystals are discretely located in the wall, while carbonate ions were present in all regions, indicating the adsorption of carbonate ions by the brucite. b Raman spectra of surface crystals (blue) and HV wall (red) at the positions shown in (a, c). c Map of three specific Raman peaks, red: 442.6 cm−1 (brucite lattice vibration, A1g, width 47.5 cm−1), blue: 1109.7 cm−1 (carbonate, width 73.4 cm−1), and green: 3420.7 cm−1 (interlayered water, width 98.8 cm−1). The corresponding peaks are shown in the spectra in (b). -- Nature Communications

Analog Studies, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biophysics, Biosignatures & Paleobiology, Caves, Craters, Mountains & Lava Tubes, Exploration Gear & Tech, Extremeophiles and Extreme Environments, Fossils & Paleontology, Imaging & Spectroscopy, Mapping, Geodesy, Cartography, Microbiology & Virology, Nanotechnology & SynBio, Origin & Evolution of Life, ROVs/Submersibles/Diving

Nanostructures In The Deep Ocean Floor Hint At Life’s Origin

by Keith CowingSeptember 27, 2024September 27, 2024

Our sample of super-Earths is shown as circles, coloured by their equilibrium temperatures. Sub-Neptunes are shown in grey for completeness. Blue contours show the 1σ and 2σ bounds on the distribution of super-Earths as a function of planet mass versus radius (left) and normalised density (right). This latter variable represents the density of each planet scaled to Earth, which has a density of ≈ 5.5 g cm−3 -- astro-ph.EP

Astrochemistry, Astrogeology, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Icy Worlds, Water/Hycean Worlds & Oceanography

Most Super-Earths Have Less Than 3% Water

by Keith CowingSeptember 27, 2024September 27, 2024

Gigantic infrared map of the Milky Way, ESO Larger images

Astronomy & Telescopes, Imaging & Spectroscopy, Stellar Cartography

ESO Telescope Captures The Most Detailed Infrared Map Ever Of Our Home Galaxy

by Keith CowingSeptember 27, 2024September 27, 2024

How the protoplanetary disc dispersal timescale, τdep, affects the formation of sub-terrestrial systems, for host star masses of 1M⊙. The meaning of the symbols are the same as in Fig. 1. The left panels feature τdep = 105.5 yr ≈ 0.32 Myr and the right panels feature τdep = 107.5 yr ≈ 32 Myr, whereas in Figs. 1-3, τdep = 106.5 yr ≈ 3.2 Myr. The top plots sample steep dust profiles (q = 3) and show almost no dependence on τdep, and the bottom plots sample flat dust profiles (q = 0), whose formation outcomes are more strongly dependent on τdep. -- astro-ph.EP

Astrogeology, Astronomy & Telescopes, Exoplanets, -moons, -comets

Forming Planetary Systems That Contain Only Minor Planets

by Keith CowingSeptember 27, 2024September 27, 2024

The Galactic Centre and Sagittarius B2, ESO larger image

Astrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, Stellar Cartography

How Sweet Is the Milky Way? UM Astrochemist Is Helping Find Out

by Keith CowingSeptember 27, 2024September 27, 2024

“At this time in Mars’ history, we think CO2 is everywhere, in every nook and cranny, and water percolating through the rocks is full of CO2 too,” Joshua Murray says. Credit: NASA/JPL-Caltech/ASU/MSSS

Astrogeology, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Habitable Zones, Icy Worlds, Mars, Terraforming & Geoengineering

Mars’ Missing Atmosphere Could Be Hiding In Plain Sight

by Keith CowingSeptember 27, 2024September 27, 2024

Astronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Stellar Cartography

This Rocky Planet Orbiting A White Dwarf Resembles Earth — 8 Billion Years From Now

by Keith CowingSeptember 27, 2024September 27, 2024

The conceptual design of China Exoplanet Habitability and Ecosystem Space Experiment (CHEESE) on China space station (CSS). -- astro-ph.EP

Biophysics, Exoplanets, -moons, -comets, Exploration Gear & Tech, Habitable Zones, Life Support Systems, Microbiology & Virology, Microgravity, Missions & Hardware, Plant Biology, Radiation, Space Agriculture, Space Life Science, Space Physiology & Medicine, Space Stations

China Exoplanet Habitability and Ecosystem Space Experiment

by Keith CowingSeptember 27, 2024September 27, 2024

Open Science at NASA

AI - Data - Apps - Cybernetics, Apps - Games, Commercial & Private Sector, Education and Outreach, Genomics, Proteomics, Bioinformatics, Mapping, Geodesy, Cartography, Nanotechnology & SynBio, NASA Astrobiology Program, Policy, Tricorders & Sensors

Open Science at NASA – Data Management Policies for BPS (Biological and Physical Sciences)

by Keith CowingSeptember 27, 2024September 27, 2024

Mass-radius diagram for TOI-1266 b (triangle) and c (square), with updated measurements from this work (blue markers) compared to C24 (gray markers). Filled circles represent all small (< 3 R⊕) planets orbiting M dwarfs (T∗ < 3900 K) with masses and radii measured to better than 3σ, based on the NASA Exoplanet Archive list of confirmed planets as of Aug 23 2024. The predicted equilibrium temperatures of the planets are indicated by the point color. For comparison, we also plot Earth-like water-rich mass-radius curves from Aguichine et al. (2021) and pure iron, Earthlike, and rocky iso-density curves from Zeng et al. (2016). -- astro-ph.EP

Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Habitable Zones, Water/Hycean Worlds & Oceanography

Tidally Heated Sub-Neptunes, Refined Planetary Compositions, and Confirmation of a Third Planet in the TOI-1266 System

by Keith CowingSeptember 27, 2024September 27, 2024