[astro-ph.IM] 3I/ATLAS is the third confirmed interstellar object passing through the Solar System.
SETI
Posted inSETI & Technosignatures
Critical Evaluation of Studies Alleging Evidence for Technosignatures in the POSS1-E Photographic Plates
[astro-ph.IM] Recent studies by B. Villarroel et al. have assembled and analysed datasets of unidentified features measured from digital scans of pre-Sputnik photographic plates. We have examined the claims in […]
Posted inAstrobiology (general)
Indigenizing The Drake Equation: How Indigenous Methods Can Help Us Understand Life In The Milky Way Galaxy
[astro-ph.IM] The Drake Equation is a thought experiment whose purpose is to understand the ingredients necessary for life and advanced technological civilizations to exist on other worlds in our galaxy.
Posted inSETI & Technosignatures
Searching For Extraterrestrial Intelligence With The SKA
[astro-ph.IM] The search for technosignatures (also known as the Search for Extraterrestrial Intelligence or SETI) depends critically on our ability to distinguish artificial signals from the rich complexity of natural […]
Posted inBiosignatures & Paleobiology, Intelligence & Language, SETI & Technosignatures, Status Report
Dust To Dust: Prospects For Passive Technosignatures As Relics Of ETI
Technological societies are separated in time, not just space — that is the lesson of the Drake equation.
Posted inAI - Data - Apps - Cybernetics, Imaging & Spectroscopy, Intelligence & Language, Interstellar, SETI & Technosignatures, Status Report
Autonomous AI-Cosmoindustry and the Quiet Expansion Filter: A Threshold-Based Resolution of the Fermi Paradox
The Fermi paradox is sharpened, not weakened, by plausible extrapolations of artificial intelligence, autonomous robotics, in-situ resource utilization, orbital manufacturing, space-based computing, and uncrewed interstellar probes.
Posted inAI - Data - Apps - Cybernetics, Biosignatures & Paleobiology, Exploration Gear & Tech, Intelligence & Language, Press Release, SETI & Technosignatures, Water/Hycean Worlds & Oceanography
CETI, SETI, And Seismology Synergies: AI Model Hears Whale Calls In Seismic Data
Researchers repurposed an AI model designed for visual identification tasks to detect Bryde’s whale calls contained with seismic data collected in the South China Sea.
![Using spectra to distinguish a (passive) probe from a natural object. These near-IR spectra were obtained for the object classified initially as 2020 SO. These spectra show characteristics consistent with the object instead being a Centaur rocket body, leading to its identification as such. (Adapted from and reproduced with permission from “Spectral Characterization of 2020 SO,” Reddy et al., original copyright © 2001 Advanced Maui Optical and Space Surveillance Technologies Conference [AMOS], https://doi.org/10.64861/WYST9178)](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/06/Solar-System.png?resize=1200%2C712&ssl=1)
Posted inAI - Data - Apps - Cybernetics, Astronomy & Telescopes, Biosignatures & Paleobiology, Intelligence & Language, SETI & Technosignatures, Status Report
Solar System Technosignatures
While prompt-based parameter-efficient continual learning mitigates catastrophic forgetting by isolating task-specific prompts, this isolation also limits later tasks from improving earlier ones, leaving backward knowledge transfer underexplored.
Posted inAstrochemistry, Astronomy & Telescopes, Biosignatures & Paleobiology, SETI & Technosignatures, Status Report
Prospects for Astrobiology And Technosignature Searches With The Vera C. Rubin Observatory Legacy Survey Of Space And Time
The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will map sources in multiband colour–variability space.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Habitable Zones, SETI & Technosignatures, Status Report, Terraforming & Geoengineering
Exploring The Orbital Stability Of Large, Lightweight Mirrors Around Exoplanets
Extraterrestrial civilizations might place large, lightweight mirrors into orbit around an exoplanet, either to alter its climate or to provide illumination to the planet’s dark side. We previously analyzed the […]