December 2025 – Page 2 – My WordPress Site

Cladosporium sphaerospermum (UAMH 4745) on potato dextrose agar after incubation for 14 days at 25°C. -- Wikipedia

Away Teams & Field Reports, Extremeophiles and Extreme Environments, Microbiology & Virology, Planetary Protection & Biosafety, Radiation, Sample Return

Fungi From Chernobyl: Mycobiota Of The Inner Regions Of The Containment Structures Of The Damaged Nuclear Reactor

by Keith CowingDecember 30, 2025December 30, 2025

Graphic of the proposed scenario of sublimation in a disk with a warm dust trap, viewed from the side, based on van der Marel et al. (2021b). If the bulk of the dust content is located in a dust trap inside the CO snowline at 30 K, this implies that fragments of its icy pebbles can be transported vertically to the higher disk layers above the H2O snow surface at 150 K, and sublimate their icy content into the gasphase, where it becomes observable. If the bulk of the pebbles is located outside the CO snowline, its icy layers may remain frozen out and its contents are not revealed in the gas phase. Such a scenario may also apply to PAHs, which is the hypothesis of this work. -- astro-ph.EP

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

Observational Evidence For A Possible Link Between PAH Emission And Dust Trap Locations In Protoplanetary Disks

by Keith CowingDecember 30, 2025December 30, 2025

This NASA/ESA Hubble Space Telescope image features a section of the Tarantula Nebula in the Large Magellanic Cloud. ESA/Hubble, NASA, and C. Murray larger image

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

Redox Diversity of Interstellar Compounds and Human Nutrients Reveals a Potentially Universal Chemical Constraint for Life

by Keith CowingDecember 30, 2025December 30, 2025

LIFE RCN Workshop

Biosignatures & Paleobiology, Courses, Fossils & Paleontology, Video, Audio, Webcasts, Podcasts

LIFE NASA RCN Seminar 6 January 2026

by Keith CowingDecember 30, 2025December 30, 2025

The systematic evaluation of algorithm effectiveness. (a) displays the original flat-field response distributions following background correction. Panels (b,c) illustrate the corrected results after algorithm processing, while (d) presents the distribution profiles of channel DN values. Notably, as evidenced in the comparative diagrams (a–c), Channel 1 (Ch1) maintains consistent spatial positioning in the upper-right quadrant of each schematic layout. -- astro-ph.IM

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

Performance Calibration of the Wavefront Sensor’s EMCCD Detector for the Cool Planets Imaging Coronagraph Aboard CSST

by Keith CowingDecember 30, 2025December 30, 2025

Combined white light image of 3I/ATLAS, created by median stacking white light images produced by collapsing in wavelength individual data cubes. The field of view displayed is 40 arcsec x 40 arcsec . Intensities are in units of 10-20 ergs−1 cm−2. Countours are over plotted. Snapshot of a new interstellar comet: 3I/ATLAS has a red and featureless spectrum, MRAS

Astrochemistry, Astrogeology, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Comets and Asteroids, Imaging & Spectroscopy, Interstellar

University Of Canterbury Team Led Study Of Interstellar Comet 3I/ATLAS

by Keith CowingDecember 30, 2025December 30, 2025

Dust clouds reflect starlight around the star R Doradus. As it nears the end of its life, the star is shedding its outer layers, forming clouds of gas and dust around it (shown here in pink and yellow). Scientists have long believed that starlight illuminating these clouds could power a stellar wind. But the colour of the light around the star reflected by dust, , shows that the dust grains are too small to explain the star’s wind. The image was taken in polarised visible light with VLT/SPHERE. In the centre in yellow and orange, we see ALMA’s image showing the surface of the star. Credit ESO/T. Schirmer/T. Khouri; ALMA (ESO/NAOJ/NRAO)

Astrochemistry, Biochemistry & Organic Chemistry, Biophysics, Interstellar, Panspermia, Space Weather & Heliophysics

Stardust Study Resets How Life’s Atoms Spread Through Space

by Keith CowingDecember 29, 2025December 29, 2025

This illustration shows a red dwarf star orbited by a hypothetical exoplanet. -- NASA source

Exoplanets, -moons, -comets, Habitable Zones, Radiation, Space Weather & Heliophysics

Habitability Of Exoplanets Orbiting Flaring Stars

by Keith CowingDecember 29, 2025December 29, 2025

ID: ESP_040566_0935 date: 23 March 2015 altitude: 245 km larger image NASA/JPL-Caltech/University of Arizona

Analog Studies, Arctic / Antarctic / Alpine, Astrogeology, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Desert Worlds, Habitable Zones, Icy Worlds, Imaging & Spectroscopy, Mars

Mesa Erosion At Mars’ South Pole

by Keith CowingDecember 29, 2025December 30, 2025

Space biology research on ISS in a plant growth chamber -- NASA

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

NASA Spaceline Current Awareness List #1,180 24 December 2025 (Space Life Science Research Results)

by Keith CowingDecember 29, 2025December 29, 2025