We discuss the possibility of enhancing intelligent life searches toward the Galactic center. From the clockwork orbital motions of stars around the Sgr A∗ black hole, we can determine the […]
Technosignature
Posted inAI - Data - Apps - Cybernetics, Astronomy & Telescopes, SETI & Technosignatures, Status Report
Reduced-resolution Beamforming: Lowering The Computational Cost For Pulsar And Technosignature Surveys
In radio astronomy, the science output of a telescope is often limited by computational resources. This is especially true for transient and technosignature surveys that need to search high-resolution data […]
Posted inAI - Data - Apps - Cybernetics, Astronomy & Telescopes, Interstellar, Press Release, SETI & Technosignatures, Stellar Cartography
SETI: Finding The ET Signal From The Cosmic Noise
This paper highlights a methodological approach designed to enhance the search for extraterrestrial intelligence (SETI) by hypothesizing that a transmission technosignature would likely have two features: 1) be wideband in […]
Posted inAI - Data - Apps - Cybernetics, Astronomy & Telescopes, Imaging & Spectroscopy, SETI & Technosignatures, Status Report
Deciding Technosignature Search Strategies: Multi-criteria Fuzzy Logic To Find Extraterrestrial Intelligence
This study presents the implementation of Multi-Criteria Decision-Making (MCDM) methodologies, particularly the fuzzy Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS), in prioritizing technosignatures (TSs) for the […]
![Planets capable of supporting high O2 concentrations and, hence, technological civilizations. This figure shows the likely composition of planetary atmospheres based on mass and equilibrium temperature. For planets whose temperature and mass would lead to primarily CO2/N2/H2O atmospheres, high oxygen levels require a biological origin, i.e. photosynthesis. For higher equilibrium temperatures, high O2 levels can occur via the runaway greenhouse effect and the photolysis of water vapor at high altitudes. (Figure adapted with permission from [7], Royal Society Publishing.) -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/01/Is-oxygen-the-cosmic-key.png?resize=1200%2C717&ssl=1)
Posted inBiosignatures & Paleobiology, Intelligence & Language, Press Release, Science Fiction, SETI & Technosignatures
Is Oxygen The Cosmic Key To Alien Technology?
In the quest to understand the potential for life beyond Earth, researchers are widening their search to encompass not only biological markers, but also technological ones.
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, SETI & Technosignatures, Status Report
The Breakthrough Listen Search for Intelligent Life: Technosignature Search of 97 Nearby Galaxies
The Breakthrough Listen search for intelligent life is, to date, the most extensive technosignature search of nearby celestial objects.
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, SETI & Technosignatures, Status Report, Terraforming & Geoengineering
Planetary Biotechnospheres, Biotechnosignatures And The Search For Extraterrestrial Intelligence
The concept of planetary intelligence as collective intelligence is used to consider possible evolutionary paths of biotechnospheres that emerge on the intersection of the technosphere with the biosphere and support […]
Posted inAI - Data - Apps - Cybernetics, Gaia - Planetary Perspectives, SETI & Technosignatures, Societal Issues, Status Report
Planetary Scale Information Transmission in the Biosphere and Technosphere: Limits and Evolution
Information transmission via communication between agents is ubiquitous on Earth, and is a vital facet of living systems.
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.
Posted inAstronomy & Telescopes, Habitable Zones, SETI & Technosignatures, Societal Issues, Status Report
Percolation of ‘Civilisation’ in a Homogeneous Isotropic Universe
In this work, we consider the spread of a ‘civilisation’ in an idealised homogeneous isotropic universe where all the planets of interest are habitable. Following a framework that goes beyond […]