Technosignature Research Portal

Terraformation, or more broadly geoengineering, is the process of modifying planetary features such as geography, temperature or atmospheric composition to make it more habitable (specifically, but not necessarily, "Terra-" or Earth-like). Artificially introducing ammonia, methane or other hydrocarbons into Mars' atmosphere to generate a warming effect is a theoretical example of terraforming, and also highlights the ethical complexities of fundamentally modifying an environment which might harbor its own shadow ecosystem. One hypothesis for FRBs (fast radio bursts) is that these may be evidence of sterilizing terraforming events.

Detectability

• Although a geoengineered planet would conceivably be no different than a naturally developed world, it's possible that the actual process of geoengineering an exoplanet may be detectable.

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
29-Apr-2022		Mathematical encoding within multi-resonant planetary systems as SETI beacons	Matthew S. Clement, Sean N. Raymond, Dimitri Veras, David Kipping Monthly Notices of the Royal Astronomical Society
21-Mar-2022		SETI in 2021	Macy J. Huston, Jason T. Wright Acta Astronautica
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
12-Jan-2022		The Cosmic Hitchhikers Hypothesis: Extraterrestrial Civilizations Using Free-Floating Planets for Interstellar Colonization	Irina K. Romanovskaya
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
23-Oct-2020		Contact Inequality -- First Contact Will Likely Be With An Older Civilization	David Kipping, Adam Frank, Caleb Scharf International Journal of Astrobiology
28-Mar-2019		Fast Radio Bursts from Terraformation	Almog Yalinewich, Mubdi Rahman, Patrick C. Breysse

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)
Mathematical encoding within multi-resonant planetary systems as SETI beacons (29-Apr-2022) Monthly Notices of the Royal Astronomical Society
SETI in 2021 (21-Mar-2022) Acta Astronautica
The Case for Technosignatures: Why They May Be Abundant, Long-lived, Highly Detectable, and Unambiguous (21-Mar-2022) The Astrophysical Journal Letters
The Cosmic Hitchhikers Hypothesis: Extraterrestrial Civilizations Using Free-Floating Planets for Interstellar Colonization (12-Jan-2022)
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)
Contact Inequality -- First Contact Will Likely Be With An Older Civilization David Kipping, Adam Frank, Caleb Scharf (23-Oct-2020) International Journal of Astrobiology
Fast Radio Bursts from Terraformation Almog Yalinewich, Mubdi Rahman, Alysa Obertas and Patrick C. Breysse (28-Mar-2019)