Technological societies are separated in time, not just space — that is the lesson of the Drake equation.
Dyson Sphere
Posted inAstronomy & Telescopes, Conferences and Meetings, Intelligence & Language, Interstellar, Nanotechnology & SynBio, Press Release, SETI & Technosignatures
The Dyson Minds 2025 Workshop: SETI around Black Holes
The Dyson Minds 2025 Workshop, held at the Center for Brains, Minds & Machines at MIT and organized by Penn State, MIT, and The Ultraintelligence Foundation, brought together researchers in […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Intelligence & Language, Interstellar, SETI & Technosignatures, Status Report
Undetected Past Contacts With Technological Species: Implications For Technosignature Science
In the search for extraterrestrial intelligence (SETI), the highly incomplete sampling of the technosignature search space is often considered as a plausible explanation for the persistent lack of detections over […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Imaging & Spectroscopy, Intelligence & Language, Interstellar, SETI & Technosignatures, Status Report
WISE/CatWISE Constraints On Dysonian Waste-Heat Technosignatures In Nearby Galaxies
We search for galaxy-scale (Dysonian) waste heat in the mid-infrared using WISE. Starting from the 2MASS Redshift Survey (2MRS), we cross-match to CatWISE2020 and AllWISE, apply standard MIR AGN/starburst vetoes […]
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 inIntelligence & Language, Science Fiction, SETI & Technosignatures, Status Report
Ringworlds And Dyson Spheres Can Be Stable
In his 1856 Adams Prize essay, James Clark Maxwell demonstrated that Saturn’s rings cannot be comprised of a uniform rigid body. This is a consequence of the two-body gravitational interaction […]
Posted inSETI & Technosignatures, Status Report
Earth Detecting Earth: At What Distance could Earth’s Constellation of Technosignatures be Detected with Present-day Technology?
The field of the Search for Extraterrestrial Intelligence (SETI) searches for “technosignatures” that could provide the first detection of life beyond Earth through the technology that an extraterrestrial intelligence (ETI) […]
Posted inAstronomy & Telescopes, Imaging & Spectroscopy, Interstellar, Science Fiction, SETI & Technosignatures, Status Report
High-resolution Imaging Of The Radio Source Associated With Project Hephaistos Dyson Sphere Candidate G
We present high-resolution e-MERLIN and EVN (e-VLBI) observations of a radio source associated with Dyson Sphere candidate G, identified as part of Project Hephaistos.
![[L] The x-axis is the Sagan’s parameter of the Kardashev civilization Type K. The y-axis is the mass of PBH in solar mass for a fraction fPBH = 0.01. The colour-bar of the contours shows the quantity Kachieved/K − 1, which Kachieved is the amount of civilization parameter achieved by PBHs. [R] The x-axis is the Sagan’s parameter of the Kardashev civilization type. The y-axis is the fraction of PBH for a mass of MPBH = 1M⊙. And the colour-bar of the contours shows the quantity Kachieved/K − 1, which Kachieved is the amount of civilization parameter achieved from PBHs. -- astro-ph.GA](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/12/In-Search-of-Extraterrestrial-Artificial-.png?resize=1200%2C719&ssl=1)
Posted inImaging & Spectroscopy, Intelligence & Language, Interstellar, Science Fiction, SETI & Technosignatures, Status Report
In Search of Extraterrestrial Artificial Intelligence through the Dyson Sphere-like structures around the Primordial Black Holes
Are we alone? It is a compelling question that human beings have confronted for centuries. The search for extraterrestrial life is a broad range of quests for finding the simple […]
Posted inAstronomy & Telescopes, Citizen Science / Open Science, Habitable Zones, Status Report, Terraforming & Geoengineering
Making Habitable Worlds: Planets Versus Megastructures
In 2016, a star KIC 8462852 caught the world’s attention due to a paper by citizen scientists who noticed its seemingly unexplainable brightness variations. The forward theory was offered – […]