[cond-mat.soft] The pronounced chiral asymmetry of biomolecules is a defining feature of living systems, yet the mechanisms by which such asymmetry emerged remain unresolved. Chiral symmetry breaking may have occurred […]
Genomics, Proteomics, Bioinformatics
Posted inOrigin & Evolution of Life
Beyond The Prebiotic Soup: Solid Organic Films And Protocell-Like Formation in Prebiotic Discharge Experiments
[Astrobiology (Journal) via PubMed] The original Miller-Urey experiment demonstrated the abiotic synthesis of organic compounds under early Earth conditions, yet the physicochemical properties and internal organization of the associated insoluble […]
Posted inBiosignatures & Paleobiology
From Searching For Extraterrestrial Biosignatures To Exploring The Origins Of Life: A Prebiotic Chemistry Perspective
[Fundamental Research]. The search for extraterrestrial life represents one of humanity’s most profound scientific endeavors. This review examines the role of prebiotic chemistry in our quest to detect extraterrestrial life.
Posted inDale Andersen's Field Reports
Astrobiologist Dale Andersen’s Antarctic Field Report: 20 Oct 2026: Wheels Down In Cape Town
[Dale Andersen]: The 787 Dreamliner rolled to a stop far out on the apron, as the big jets often do here, and I climbed down into a gray afternoon and […]
Posted inDale Andersen's Field Reports
Astrobiologist Dale Andersen’s Antarctic Field Report: Preview: Fall 2026 Lake Untersee Field Season
Keith’s note: Dale Andersen is preparing for his second expedition to Lake Untersee, Antarctica for 2026. The first 2026 Field season at Lake Untersee was conducted from January – March […]
![Radiogenic dose and the benefit of drilling. (a) GCR dose versus depth for constant-depth and steadily exhuming horizons, compared with the depth-independent radiogenic dose. Shading spans the radiogenic dose of the baseline composition at 3 Ga (0.9 MGy) and that of the regional GRS abundances at 3.9 Ga (5.6 MGy). Where a curve crosses the radiogenic level, the two doses are equal. (b) Total-dose reduction at 100–101 and 199–200 cm versus exposure age; dashed lines are the GCR-only shielding factors. Dotted lines mark effective ages for 10 and 100 nm yr−1 exhumation. -- [astro-ph.EP]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/10/Radiation.png?resize=1200%2C720&ssl=1)
Posted inMars
Radiation Limits On Amino Acid Preservation And Chiral Measurement At Oxia Planum
[astro-ph.EP] Amino acid enantiomeric excess (EE) is a potential biosignature, but its measurement requires sufficient surviving material as well as preserved chirality.
![[Tree of Life] The Wellcome Sanger Institute’s Tree of Life programme has announced ambitious plans to accelerate publication of genome notes from approximately 30 per month to 200, expanding access to research that is supporting advances in agriculture, conservation, and medicine. This significant increase will be facilitated by a new specialised workflow developed by F1000 and the Wellcome Sanger Institute for Wellcome Open Research.](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/10/treeoflife1-2.jpg?resize=1200%2C722&ssl=1)
Posted inGenomics, Proteomics, Bioinformatics
Tree of Life Program Targets Publication Of 200 Genome Notes Per Month
Editor’s note: If we aspire to mount expeditions to new worlds and then embrace the task of characterizing and quantifying whatever life forms we find, the ability to map and […]
Posted inRadiation
AMMPER-2: A Spatially Explicit Agent-based Model Of Microbial Radiobiology With Redox Dye Simulation
[biorxiv.org] To reduce health risks for human space exploration, it is important to model the effects of deep-space radiation on biological systems.
Posted inGenomics, Proteomics, Bioinformatics
Compatible Comma-Free Codes and the Origin of the Genetic Code
[biorxiv.org] The genetic code is the rule that (apart from minor modifications [1, 2]) is used by all contemporary life on Earth to translate genes into proteins. It is summarized […]
Posted inNanotechnology & SynBio
Designing Protein Structures From Natural Language
[cs.LG] A central challenge in de novo protein design is generating proteins with desired structural and functional properties.