A range of speculative space ventures envisage the use of ultra-large structures for the collection and reflection of light.
Technosignatures
Posted inAstrobiology (general), Astronomy & Telescopes, Biosignatures & Paleobiology, People Of Astrobiology, Press Release, SETI & Technosignatures
SETI Institute Opens Call For Nominations For The 2026 Tarter Award
The SETI Institute announced that nominations are now open for the 2026 Tarter Award for Innovation in the Search for Life Beyond Earth. The Tarter Award recognizes individuals whose projects […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Habitable Zones, Imaging & Spectroscopy, Intelligence & Language, Interstellar, SETI & Technosignatures, Status Report
Optical SETI At ESO In The 2040s
The searches for other life and for intelligence are fundamental problems that science faces today. Most searches so far have been focused on radio, but optical laser communication is an […]
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Comets and Asteroids, Imaging & Spectroscopy, Interstellar, SETI & Technosignatures, Status Report
A Search For Radio Technosignatures From Interstellar Object 3I/ATLAS With The Allen Telescope Array
In 2025 July, the third-ever interstellar object, 3I/ATLAS, was discovered on its ingress into the Solar System. Similar to the NASA Voyager missions sent in 1977, science probes by extraterrestrial […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Imaging & Spectroscopy, Intelligence & Language, Press Release, SETI & Technosignatures
Microlensing Signatures Of Dyson Sphere-like Structures Around Primordial Black Holes As Technosignatures Of Extraterrestrial Advanced Civilizations
We investigate the microlensing detectability of extraterrestrial technosignatures originating from Dyson sphere – like structures, such as Dyson Swarms surrounding primordial black holes (PBHs).
Posted inAtmospheres, Climate, Weather, Habitable Zones, Intelligence & Language, Origin & Evolution of Life, SETI & Technosignatures, Status Report
A Reassessment Of The “hard-steps” Model For The Evolution Of Intelligent Life
According to the “hard-steps” model, the origin of humanity required “successful passage through a number of intermediate steps” (so-called “hard steps”) that were intrinsically improbable in the time available for […]
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 inAstronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Intelligence & Language, Interstellar, SETI & Technosignatures, Status Report, TRAPPIST-1
A Deep SETI Search For Technosignatures In The TRAPPIST-1 System With FAST
The Five-hundred-meter Aperture Spherical Telescope (FAST) is the world’s largest single-dish radio telescope, and the search for extraterrestrial intelligence (SETI) is one of its five key science objectives.
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Intelligence & Language, Press Release, SETI & Technosignatures
IAU 404: Advancing The Search For Technosignatures
Abstract submission is now open for IAU symposium #404: Advancing the Search for Technosignatures, which will take place 2-6 March 2026 online everywhere. Submit your abstract using the link below. […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Intelligence & Language, Interstellar, Press Release, SETI & Technosignatures
If Aliens Explore Space Like Us, We Should Look For Their Calls To Other Planets
If an extraterrestrial intelligence were looking for signs of human communications, when and where should they look? In a new study, researchers at Penn State and NASA’s Jet Propulsion Laboratory […]