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) […]
Dyson Sphere
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 – […]
Posted inAstropharmacy / Biotechnology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Intelligence & Language, Science Fiction, SETI & Technosignatures, Status Report
Technosignatures: Did WISE Detect Dyson Spheres/Structures Around Gaia-2MASS-selected Stars?
Soon after the release of the WISE all-sky catalogue of 500 million mid-infrared (IR) objects, suggestions were made that it could be used to search for extrasolar devices constructed by […]
Posted inAstronomy & Telescopes, SETI & Technosignatures, Status Report
Background Contamination of the Project Hephaistos Dyson Spheres Candidates
Project Hephaistos recently identified seven M-dwarfs as possible Dyson Spheres (DS) candidates. We have cross-matched three of these candidates (A, B \& G) with radio sources detected in various all-sky […]
Posted inAstronomy & Telescopes, Intelligence & Language, SETI & Technosignatures, Status Report
Is There A Universal Limit To Technological Development? Evidences From Astrobiology
Considering the vastness of time and space, if one civilization — ours — has been able to advance technologically to the point of leaving its own planet, why technosignatures from […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Imaging & Spectroscopy, SETI & Technosignatures, Status Report
Detectability of Solar Panels as a Technosignature
In this work, we assess the potential detectability of solar panels made of silicon on an Earth-like exoplanet as a potential technosignature. Silicon-based photovoltaic cells have high reflectance in the […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Imaging & Spectroscopy, Intelligence & Language, Press Release, SETI & Technosignatures
Searching for Signs of Intelligent Life: Technosignatures
Our first confirmed proof of life beyond Earth might not involve biology at all. It’s possible that we might intercept communication through electromagnetic waves, like radio, or find telescopic evidence […]
Posted inPress Release, Science Fiction, SETI & Technosignatures, Terraforming & Geoengineering
Application of the Thermodynamics of Radiation to Dyson Spheres as Work Extractors and Computational Engines, and their Observational Consequences
I apply the thermodynamics of radiation to Dyson spheres as machines that do work or computation, and examine their observational consequences.