3I/ATLAS (also designated C/2025 N1 (ATLAS) and, formerly, A11pl3Z) is the third interstellar object (ISO), following 1I/‘Oumuamua and 2I/Borisov, to be discovered during a passage through the Solar System. The […]
Technosignature
Posted inAstrochemistry, Astrogeology, Biosignatures & Paleobiology, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Interstellar, Press Release, SETI & Technosignatures
South African Telescope Detects Natural Radio Emission – And No Signal Of Technological Origin – From Interstellar Visitor 3I/ATLAS
Since its discovery on 1 July 2025 by the Asteroid Terrestrial-impact Last Alert System (ATLAS), the object known as 3I/ATLAS has captured the popular imagination, being only the third known […]
Posted inIntelligence & Language, Interstellar, SETI & Technosignatures, Status Report
The Eschatian Hypothesis
The history of astronomical discovery shows that many of the most detectable phenomena, especially detection firsts, are not typical members of their broader class, but rather rare, extreme cases with […]
Posted inAstrobiology (general), Biosignatures & Paleobiology, NASA Astrobiology Program, SETI & Technosignatures, Status Report
Responsible Discovery in Astrobiology: Lessons from Four Controversial Claims
This paper examines four case studies of life-detection claims in astrobiology, covering both biosignatures and technosignatures: the 1877 “canals” on Mars, the 1976 Mars Viking landers experiments, the 2020 phosphine […]
Posted inBiosignatures & Paleobiology, Conferences and Meetings, SETI & Technosignatures, Status Report
IAUS 404: Advancing The Search For Technosignatures Registration Is Now Open
We are particularly excited because this event is organized by BMSIS as one of the officially sanctioned International Astronomical Union symposia for 2026.
Posted inBiosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Intelligence & Language, Interstellar, SETI & Technosignatures, Status Report
Projections of Earth’s Technosphere: Strategies For Observing Technosignatures On Terrestrial Exoplanets
The search for technosignatures — remotely detectable evidence of extraterrestrial technology — draws upon examples from the recent history of Earth as well as projections of Earth’s technosphere.
Posted inAstronomy & Telescopes, SETI & Technosignatures, Status Report
Simulating The Stellar Bycatch: Constraining The Prevalence Of Extraterrestrial Transmitters Within Radio SETI Surveys
Searches for radio technosignatures place constraints on the prevalence of extraterrestrial transmitters in our Galaxy and beyond. It is important to account for the complete stellar population captured within a […]
Posted inIntelligence & Language, Interstellar, SETI & Technosignatures, Status Report
A Firefly-inspired Model For Deciphering The Alien
The Search for Extraterrestrial Intelligence (ETI) is, historically, a search for aliens like us, inspired by human centric ideas of intelligence and technology.
Posted inAI - Data - Apps - Cybernetics, Astronomy & Telescopes, Biosignatures & Paleobiology, Intelligence & Language, Interstellar, Press Release, SETI & Technosignatures
Revolutionary AI System Achieves 600× Speed Breakthrough in Detection of Signals from Space
In an exciting leap forward for astronomy, researchers at the Breakthrough Listen initiative, in partnership with NVIDIA, have achieved a groundbreaking advancement in the search for Fast Radio Bursts (FRBs), […]
Posted inImaging & Spectroscopy, Intelligence & Language, SETI & Technosignatures, Status Report
A Cost-Effective Search for Extraterrestrial Probes in the Solar System
For centuries, astronomers have discussed the possibility of inhabited worlds – from Herschel’s 18th-century observations suggesting Mars may host life, to the systematic search for technosignatures that began in the […]