Technosignature Research Portal

Our atmosphere is unmistakably that of a post-industrial civilization. High levels of carbon monoxide, sulfur dioxide and chlorofluorocarbons are the result of hundreds of years of manufacturing emmissions, as is the depletion of the ozone layer as a consequence of the release into the atmosphere of halocarbons and other manufactured chemicals. Other technological civilizations which exist on the surfaces of exoplanets are likely to have a comparable impact on their atmospheres.

Detectability

• Air pollution, and specifically the toxic emissions of manufacturing processes, would be an indicator of technological activity, and could be detected by the analysis of a planet's atmosphere as it transits its sun.

Research

21-Sep-2022		Opportunities for Technosignature Science in the Planetary Science and Astrobiology Decadal Survey	Jacob Haqq-Misra, Reza Ashtari, James Benford, Jonathan Carroll-Nellenback, Niklas A. Döbler, Wael Farah, Thomas J. Fauchez, Vishal Gajjar, David Grinspoon, Advait Huggahalli, Ravi Kumar Kopparapu, T. Joseph W. Lazio, George Profitiliotis, Evan L. Sneed, Savin Shynu Varghese, Clément Vidal
31-May-2022		Searching for technosignatures in exoplanetary systems with current and future missions	Jacob Haqq-Misra, Edward W. Schwieterman, Hector Socas-Navarro, Ravi Kumar Kopparapu, Daniel Angerhausen, Thomas G. Beatty, S. V. Berdyugina, Ryan Felton, Siddhant Sharma, Gabriel G. De la Torre, Daniel Apai
11-Apr-2022		Disruption of a Planetary Nitrogen Cycle as Evidence of Extraterrestrial Agriculture	Jacob Haqq-Misra, Thomas J. Fauchez, Edward W. Schwieterman, Ravi Kumar Kopparapu The Astrophysical Journal
21-Mar-2022		The Case for Technosignatures: Why They May Be Abundant, Long-lived, Highly Detectable, and Unambiguous	Jason T. Wright, Jacob Haqq-Misra, Adam Frank, Ravi Kumar Kopparapu, Manasvi Lingam, Sofia Z Sheikh The Astrophysical Journal Letters
21-Mar-2022		SETI in 2021	Macy J. Huston, Jason T. Wright Acta Astronautica
16-Mar-2022		Opportunities for Technosignature Science in the Astro2020 Report	Jacob Haqq-Misra, Nikolai Semyonovich Kardashev, Manasvi Lingam, Ravi Kumar Kopparapu, Adam Frank, Jason T. Wright, Eric Mamajek, Nick Siegler, Danny C. Price
11-Feb-2022		Detectability of Chlorofluorocarbons in the Atmospheres of Habitable M-dwarf Planets	Jacob Haqq-Misra, Ravi Kumar Kopparapu, Thomas J. Fauchez, Adam Frank, Jason T. Wright, Manasvi Lingam Planetary Science Journal
15-Jul-2021		Strategies and Advice for the Search for Extraterrestrial Intelligence	Jason T. Wright
4-Mar-2021		Longevity is the key factor in the search for technosignatures	Amedeo Balbi, Milan M. Cirkovic
2-Mar-2021		Concepts for future missions to search for technosignatures	Hector Socas-Navarro, Jacob Haqq-Misra, Jason T. Wright, Ravi Kumar Kopparapu, James Benford, Ross Davis

Opportunities for Technosignature Science in the Planetary Science and Astrobiology Decadal Survey (21-Sep-2022)
Searching for technosignatures in exoplanetary systems with current and future missions (31-May-2022)
Disruption of a Planetary Nitrogen Cycle as Evidence of Extraterrestrial Agriculture (11-Apr-2022) The Astrophysical Journal
The Case for Technosignatures: Why They May Be Abundant, Long-lived, Highly Detectable, and Unambiguous (21-Mar-2022) The Astrophysical Journal Letters
SETI in 2021 (21-Mar-2022) Acta Astronautica
Opportunities for Technosignature Science in the Astro2020 Report (16-Mar-2022)
Detectability of Chlorofluorocarbons in the Atmospheres of Habitable M-dwarf Planets (11-Feb-2022) Planetary Science Journal
Strategies and Advice for the Search for Extraterrestrial Intelligence (15-Jul-2021)
Longevity is the key factor in the search for technosignatures Amedeo Balbi and Milan M. Cirkovic (4-Mar-2021)
Concepts for future missions to search for technosignatures Hector Socas-Navarro, Jacob Haqq-Misra, Jason T. Wright et al. (2-Mar-2021)