In response to a recommendation by an independent study team for NASA to play a more prominent role in understanding Unidentified Anomalous Phenomena (UAP), the agency announced Thursday it is […]
Technosignature
Posted inAstrogeology, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, SETI & Technosignatures, Status Report
Fully Fluorinated Non-carbon Compounds NF3 And SF6 As Ideal Technosignature Gases
Waste gas products from technological civilizations may accumulate in an exoplanet atmosphere to detectable levels. We propose nitrogen trifluoride (NF3) and sulfur hexafluoride (SF6) as ideal technosignature gases.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, SETI & Technosignatures, Status Report
Earth As A Transiting Exoplanet: A Validation Of Transmission Spectroscopy And Atmospheric Retrieval Methodologies For Terrestrial Exoplanets
The James Webb Space Telescope (JWST) will enable the search for and characterization of terrestrial exoplanet atmospheres in the habitable zone via transmission spectroscopy.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, SETI & Technosignatures, Status Report
Specular Reflections From Artificial Surfaces As Technosignature
Direct imaging of exoplanets will allow us to directly observe the planet in reflected light. Such a scenario may eventually allow for the possibility to scan the planetary surface for […]
Posted inAtmospheres, Climate, Weather, Imaging & Spectroscopy, Missions & Hardware, Press Release, SETI & Technosignatures, Space Stations
Observation Of Night-time Emissions Of The Earth In The Near UV Range From The International Space Station With The Mini-EUSO detector
Mini-EUSO (Multiwavelength Imaging New Instrument for the Extreme Universe Space Observatory) is a telescope observing the Earth from the International Space Station since 2019.
Posted inPress Release, SETI & Technosignatures
The Fermi Paradox Revisited: Technosignatures And The Contact Era
A new solution to the Fermi Paradox is presented: probes or visits from putative alien civilizations have a very low probability until a civilization reaches a certain age (called the […]
Posted inAlpha Centauri, Astronomy & Telescopes, Imaging & Spectroscopy, Press Release, SETI & Technosignatures
A Search For Optical Laser Emission From Alpha Centauri AB
A search for laser light from the directions of Alpha Centauri A and B was performed by examining 15362 optical, high-resolution spectra obtained between 2004 and 2018. None of the […]
Posted inInterstellar, Press Release, SETI & Technosignatures
The Inferred Abundance of Interstellar Objects of Technological Origin
The local detection rate of interstellar objects can allow for estimations of the total number of similar objects bound by the Milky Way thin disk.
Posted inSETI & Technosignatures
Searching For Technosignatures In Exoplanetary Systems With Current And Future Missions
Technosignatures refer to observational manifestations of technology that could be detected through astronomical means. Most previous searches for technosignatures have focused on searches for radio signals, but many current and […]
Posted inSETI & Technosignatures
Avoiding the Great Filter: Predicting the Timeline for Humanity to Reach Kardashev Type I Civilization
The level of technological development of any civilization can be gaged in large part by the amount of energy they produce for their use, but also encompasses that civilization’s stewardship […]