September 2025 – Page 23 – My WordPress Site

Distribution of the derived planetary radii as a function of insolation, along with the associated KDE. -- astro-ph.EP

Astronomy & Telescopes, Exoplanets, -moons, -comets, Stellar Cartography

An Analysis Of The Radius Gap In A Sample Of Kepler, K2 And TESS Exoplanets Orbiting M Dwarf Stars

by Keith CowingSeptember 3, 2025

Stockholm University

Genomics, Proteomics, Bioinformatics, Microbiology & Virology, Origin & Evolution of Life, Plant Biology

Partnership Between Algae And Bacteria Reveals Secrets Of Evolution

by Keith CowingSeptember 3, 2025September 3, 2025

Efficiency factors of crystalline ice grains with carbon inclusions for grain radii of 1 (red), 2 (blue), 5 (green), and 10 µm (brown). The inclusion fraction is set as 0.1. (a) The solid lines indicate the extinction efficiency factors in the 3 µm region. The scattering and absorption efficiency factors for a 2 µm grain are also shown with the dotted and dashed lines. (b) Absorption efficiency factors in the FIR. The colors are the same as in (a). -- astro-ph.EP

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

Searching For Missing Interstellar Oxygen In The Far-infrared

by Keith CowingSeptember 3, 2025

D/H ratio in Solar System objects. Comets exhibit large variations between 1 and 3 times Vienna Standard Mean Ocean Water (VSMOW). The red diamond and arrow mark the revised value of 2.59 ± 0.36 × 10−4 in comet 67P/C-G.2 -- astro-ph.EP

Astrochemistry, Astrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Comets and Asteroids, Habitable Zones, Icy Worlds, Impact events, Water/Hycean Worlds & Oceanography

Isotopic Composition Of Cometary Water And The Origin Of Earth’s Oceans

by Keith CowingSeptember 3, 2025September 3, 2025

NASA Spaceline Current Awareness - Grok via Astrobiology.com

Microgravity, Space Life Science, Space Stations, SPACELINE Current Awareness List

NASA Spaceline Current Awareness List #1,164 29 August 2025 (Space Life Science Research Results)

by Keith CowingSeptember 2, 2025September 2, 2025

Uranus Flagship Workshop -- astro-ph.IM

Ariel, Ice Giant, Icy Worlds, Miranda, Missions & Hardware, Oberon, Titania, Umbriel, Uranus

The Uranus Flagship: Investigating New Paradigms for Outer Solar System Exploration Workshop Summary Report

by Keith CowingSeptember 2, 2025September 2, 2025

ID: ESP_066552_1215, date: 7 October 2020,altitude: 247 km,NASA/JPL-Caltech/University of Arizonalarger image

Analog Studies, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Icy Worlds, Mars

A Slice of Ice On Mars

by Keith CowingSeptember 2, 2025September 2, 2025

The explosion left behind an interstellar gas-and-dust cloud rich in silicon (gray), sulfur (yellow) and argon (purple). Credit: Keck Observatory/Adam Makarenko

Astrochemistry, Astronomy & Telescopes, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar

Astrochemistry: Supernova Study Reveals The Birthplace Of Silicon And Sulfur

by Keith CowingSeptember 2, 2025September 2, 2025

Growth tracks of a single planet injected at r = 3 AU and t = 104 yr. In the irradiated case (left), this results in the formation of a super-Earth at the inner disc edge for all stellar masses and disc sizes. In the viscous heating case (right), the protoplanet grows into a giant planet for high stellar masses as well as for solar-mass stars with sufficiently large discs. -- astro-ph.EP

Exoplanets, -moons, -comets, Stellar Cartography

How Stellar Mass And Disc Size Shape The Formation And Migration Of Super-Earths

by Keith CowingSeptember 2, 2025September 2, 2025

Altitude integrated joule heating for scale factors 1, 5, and 10. Gradient uses the same maximum value for visible demonstration of the changes between the images -- astro-ph.EP

Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy

The Impact of Enhanced EUV Flux on the Upper Atmosphere of Earth-like Exoplanets

by Keith CowingSeptember 2, 2025September 2, 2025