We suggest that the large-scale deployment of wind turbines on an M-dwarf planet could produce observable technosignatures.
SETI
Posted inAstrobiology (general), Astronomy & Telescopes, Intelligence & Language, Interstellar, Science Fiction, SETI & Technosignatures, Societal Issues, Status Report
SETI Post-Detection Protocols: Progress Towards A New Version
The International Academy of Astronautics (IAA) SETI Committee has long provided guiding principles for responding to a potential detection of a SETI signal.
Posted inAstronomy & Telescopes, Intelligence & Language, Interstellar, SETI & Technosignatures, Status Report
Artificial Broadcasts as Galactic Populations: III. Constraints on Radio Broadcasts from the Cosmic Population of Inhabited Galaxies
Any population of artificial radio broadcasts in a galaxy contributes to its integrated radio luminosity.
Posted inAstronomy & Telescopes, Intelligence & Language, Interstellar, SETI & Technosignatures, Status Report
Artificial Broadcasts as Galactic Populations: II. Comparing Individualist and Collective Bounds on Broadcast Populations in Single Galaxies
The search for extraterrestrial intelligence includes efforts to constrain populations of artificial broadcasts in other galaxies.
Posted inAstrobiology (general), Habitable Zones, Origin & Evolution of Life, SETI & Technosignatures, Status Report
Solar Hegemony: M-Dwarfs Are Unlikely to Host Observers Such as Ourselves
With no firm evidence for life beyond our solar system, inferences about the population observers such as ourselves rests upon the Earth as a single input, at least for now.
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Intelligence & Language, SETI & Technosignatures, Status Report
Artificial Broadcasts as Galactic Populations: I. A Point Process Formalism for Extraterrestrial Intelligences and Their Broadcasts
Artificial broadcasts from extraterrestrial intelligences (ETIs) are a hypothetical class of celestial phenomena.
Posted inBiosignatures & Paleobiology, Intelligence & Language, Missions & Hardware, Nanotechnology & SynBio, SETI & Technosignatures, Status Report
Technosignatures Of Self-Replicating Probes In The Solar System
We explore a much-neglected area of SETI: solar system techno-signatures. As our cursory solar system exploration consolidates into commercial industrialisation, it is crucial that we determine what to look for […]
Posted inAstrobiology (general), Intelligence & Language, Interstellar, SETI & Technosignatures, Status Report
How Technological Acceleration Shrinks SETI’s Narrow Detection Window
The search for extraterrestrial intelligence (SETI) has historically focused on detecting electromagnetic technosignatures, implicitly assuming that alien civilisations are biological and technologically analogous to ourselves.
![[L] akospapp42 asks "What if someone out there found the Voyager Golden Record?" [R] My wife and I found it at the Air and Space Museum in DC](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/09/Reflections-On-The.png?resize=1200%2C720&ssl=1)
Posted inAstrobiology (general), Intelligence & Language, Interstellar, Science Fiction, SETI & Technosignatures, Societal Issues, Status Report
Reflections On The Voyager Record
Editor’s note: In 1977 The twin Voyager spacecraft left Earth. They are now in interstellar space. On board are two records containing imagery and music representing humanity. Below are two […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Intelligence & Language, Press Release, SETI & Technosignatures
How Common Are Biological ETIs in the Galaxy?
The closest technological species to us in the Milky Way galaxy could be 33,000 light years away and their civilisation would have to be at least 280,000 years, and possibly […]