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   <news:title>Astrobiologist Dale Andersen’s Antarctic Field Report: 3 November 2026: Digging Out and Packing Before the Traverse to Lake Untersee</news:title>
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  <loc>https://astrobiology.com/2026/11/04/the-megawave-radio-surveyor/</loc>
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   <news:title>The MegaWave Radio Surveyor</news:title>
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  <lastmod>2026-11-04T16:40:38Z</lastmod>
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   <news:title>Demographics of Close-In TESS Exoplanets Orbiting FGK Main-sequence Stars II. Spectral-Type Dependence and the Neptunian Landscape</news:title>
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  <lastmod>2026-11-04T16:36:15Z</lastmod>
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   <news:title>Up In Smoke: Carbon-destruction In The Terrestrial Planet-forming Region Of A Young Class I Disk</news:title>
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  <loc>https://astrobiology.com/2026/11/04/does-topology-dependent-chemistry-influence-the-interstellar-pah-inventory-insights-from-the-absence-of-cyanotriphenylenes/</loc>
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   <news:title>Does Topology-Dependent Chemistry Influence the Interstellar PAH Inventory? Insights from the Absence of Cyanotriphenylenes</news:title>
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   <news:title>A Whole-Earth Simulation Built To Help Find Life On Other Planets</news:title>
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  <loc>https://astrobiology.com/2026/11/03/nasa-spaceline-current-awareness-list-1223-30-october-2026-space-life-science-research-results/</loc>
  <lastmod>2026-11-02T23:59:14Z</lastmod>
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   <news:title>NASA Spaceline Current Awareness List #1,223 30 October 2026 (Space Life Science Research Results)</news:title>
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  <loc>https://astrobiology.com/2026/11/03/communicating-the-uncertainty-of-extraterrestrial-life-how-the-news-media-portrayed-the-contested-phosphine-detection-on-venus/</loc>
  <lastmod>2026-11-03T17:20:00Z</lastmod>
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   <news:title>Communicating The Uncertainty Of Extraterrestrial Life: How The News Media Portrayed The Contested Phosphine Detection On Venus</news:title>
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  <loc>https://astrobiology.com/2026/11/03/windows-of-nutrient-bioaccessibility-phosphorus-as-a-key-constraint-on-the-chemical-potential-for-life-beyond-earth/</loc>
  <lastmod>2026-11-03T17:15:54Z</lastmod>
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    <news:name>Astrobiology</news:name>
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   <news:title>Windows of Nutrient Bioaccessibility: Phosphorus as a Key Constraint on the Chemical Potential for Life Beyond Earth</news:title>
   <news:publication_date>2026-11-03T16:11:00Z</news:publication_date>
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  <loc>https://astrobiology.com/2026/11/03/hidden-in-plain-sight-in-ryugu-and-meteorites/</loc>
  <lastmod>2026-11-03T17:11:35Z</lastmod>
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    <news:name>Astrobiology</news:name>
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   <news:title>Hidden In Plain Sight In Ryugu And Meteorites</news:title>
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  <loc>https://astrobiology.com/2026/11/03/distinguishing-n2-dominated-from-o2-dominated-atmospheres-on-terrestrial-exoplanets-with-reflected-light-spectroscopy/</loc>
  <lastmod>2026-11-03T17:03:52Z</lastmod>
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    <news:name>Astrobiology</news:name>
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   <news:title>Distinguishing N2-Dominated from O2-Dominated Atmospheres on Terrestrial Exoplanets with Reflected-Light Spectroscopy</news:title>
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  <loc>https://astrobiology.com/2026/11/03/uncertainty-estimation-of-incoming-comet-trajectories-with-a-thermophysical-non-gravitational-force-model-for-comet-interceptor-encounter-planning/</loc>
  <lastmod>2026-11-03T16:58:01Z</lastmod>
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    <news:name>Astrobiology</news:name>
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   <news:title>Uncertainty Estimation of Incoming Comet Trajectories with a Thermophysical Non-gravitational Force Model for Comet Interceptor Encounter Planning</news:title>
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  <loc>https://astrobiology.com/2026/11/03/completeness-and-dynamical-stability-in-exoplanet-occurrence-rates/</loc>
  <lastmod>2026-11-03T17:06:54Z</lastmod>
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    <news:name>Astrobiology</news:name>
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   <news:title>Completeness And Dynamical Stability In Exoplanet Occurrence Rates</news:title>
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  <loc>https://astrobiology.com/2026/11/03/searching-for-substellar-companion-candidates-with-gaia-v-m-dwarfs-within-15-pc-studied-with-absolute-astrometry-radial-velocities-and-direct-imaging/</loc>
  <lastmod>2026-11-03T16:55:15Z</lastmod>
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    <news:name>Astrobiology</news:name>
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   <news:title>Searching for Substellar Companion Candidates with Gaia. V. M dwarfs Within 15 pc Studied with Absolute Astrometry, Radial Velocities, and Direct Imaging</news:title>
   <news:publication_date>2026-11-03T14:51:00Z</news:publication_date>
   <news:genres>Blog</news:genres>
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  <loc>https://astrobiology.com/2026/11/03/deep-learning-identification-and-global-characterization-of-energetic-o2-beams-at-mars/</loc>
  <lastmod>2026-11-03T16:51:09Z</lastmod>
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    <news:name>Astrobiology</news:name>
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   <news:title>Deep-Learning Identification and Global Characterization of Energetic O2+ Beams at Mars</news:title>
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  <loc>https://astrobiology.com/2026/11/02/inspecting-a-dragonfly-mass-spectrometer-drams-transducer/</loc>
  <lastmod>2026-11-02T17:50:43Z</lastmod>
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    <news:name>Astrobiology</news:name>
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   <news:title>Inspecting A Dragonfly Mass Spectrometer (DRAMS) Transducer</news:title>
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  <lastmod>2026-11-02T16:42:18Z</lastmod>
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  <loc>https://astrobiology.com/2026/11/02/the-fate-of-ice-sheets-on-near-synchronously-rotating-land-planets/</loc>
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    <news:name>Astrobiology</news:name>
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   <news:title>The Fate of Ice Sheets on Near-Synchronously Rotating Land Planets</news:title>
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  <loc>https://astrobiology.com/2026/11/02/extraterrestrial-chemical-boundary-conditions-and-evolutionary-opportunity-space-on-early-earth/</loc>
  <lastmod>2026-11-02T16:37:45Z</lastmod>
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    <news:name>Astrobiology</news:name>
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   <news:title>Extraterrestrial Chemical Boundary Conditions and Evolutionary Opportunity Space on Early Earth</news:title>
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  <loc>https://astrobiology.com/2026/11/02/complex-organic-molecules-in-protostars-with-alma-spectral-surveys-compass-iii-ch3oh-isotopic-fractionation-in-the-low-mass-protostar-bhr71-irs1/</loc>
  <lastmod>2026-11-02T17:45:43Z</lastmod>
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    <news:name>Astrobiology</news:name>
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   <news:title>Complex Organic Molecules in Protostars with ALMA Spectral Surveys (COMPASS) III. CH3OH isotopic fractionation in the low-mass protostar BHR71-IRS1</news:title>
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  <loc>https://astrobiology.com/2026/11/02/material-cycling-across-earths-spheres-and-triggers-of-cambrian-explosion-a-tectonic-perspective-2/</loc>
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    <news:name>Astrobiology</news:name>
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   <news:title>Material Cycling Across Earth’s Spheres And Triggers Of Cambrian Explosion: A Tectonic Perspective</news:title>
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  <loc>https://astrobiology.com/2026/11/02/metagenomics-in-spaceflight-establishing-an-implementation-roadmap/</loc>
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    <news:name>Astrobiology</news:name>
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   <news:title>Metagenomics in Spaceflight: Establishing an Implementation Roadmap</news:title>
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  <loc>https://astrobiology.com/2026/11/02/study-details-one-of-oldest-mars-meteorites-ever-found/</loc>
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    <news:name>Astrobiology</news:name>
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   <news:title>Study Details One of Oldest Mars Meteorites Ever Found</news:title>
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  <loc>https://astrobiology.com/2026/11/02/astrochemistry-dwarf-galaxies-retain-only-a-small-fraction-of-the-oxygen-made-by-their-stars/</loc>
  <lastmod>2026-11-02T16:02:36Z</lastmod>
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    <news:name>Astrobiology</news:name>
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   <news:title>Astrochemistry: Dwarf Galaxies Retain Only A Small Fraction Of The Oxygen Made By Their Stars</news:title>
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  <loc>https://astrobiology.com/2026/11/02/solar-system-surface-technosignatures-searching-for-signs-of-artificial-design-on-extraterrestrial-terrain/</loc>
  <lastmod>2026-11-02T17:27:28Z</lastmod>
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    <news:name>Astrobiology</news:name>
    <news:language>en</news:language>
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   <news:title>Solar System Surface Technosignatures: Searching for Signs of Artificial Design on Extraterrestrial Terrain</news:title>
   <news:publication_date>2026-11-02T15:22:00Z</news:publication_date>
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