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Artificial Light or Heat
Artificial Satellites
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Artificial Satellites
Earth's first artificial satellite, Sputnik I, orbited the Earth in 1957, and over the past half century nearly 10,000 additional satellites have been launched, roughly half of which remain in orbit today. A technologically advanced civilization will presumably be similarly inclined to deploy technology into orbit for scientific or commercial gain, and over time, the number, size and utility of artificial satellites may increase on par.
Detectability
Natural satellites are potentially detectable when transiting a planet by the dimming of the parent planet's light curve.
Similarly, a sufficiently large number of artificial satellites could also be detectable by their influence on the light of their parent planet, although differentiating between natural and artificial satellites would represent an extreme challenge of resolution for any telescope.
Research
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
15-Jul-2021
Strategies and Advice for the Search for Extraterrestrial Intelligence
Jason T. Wright
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
22-Sep-2019
Improved Analysis of Clarke Exobelt Detectability
Shauna M. Sallmen
,
Eric J. Korpela
,
Kaisa Crawford-Taylor
10-Jul-2019
Transiting Quasites as a Possible Technosignature
David Kipping
Research Notes of the AAS
20-Dec-2018
NASA and the Search for Technosignatures: A Report from the NASA Technosignatures Workshop
NASA Technosignatures Workshop
1-Oct-2018
The Exo-Life Finder (ELF) telescope: New strategies for direct detection of exoplanet biosignatures and technosignatures
S. V. Berdyugina
,
Jeff R. Kuhn
,
M. Langlois
21-Feb-2018
Possible Photometric Signatures of Moderately Advanced Civilizations: The Clarke Exobelt
Hector Socas-Navarro
27-May-2015
Modeling Indications of Technology in Planetary Transit Light Curves
Eric J. Korpela
,
Shauna M. Sallmen
,
Diana Leystra Greene
Astrophysical Journal
Searching for technosignatures in exoplanetary systems with current and future missions
(31-May-2022)
Strategies and Advice for the Search for Extraterrestrial Intelligence
(15-Jul-2021)
Concepts for future missions to search for technosignatures
Hector Socas-Navarro, Jacob Haqq-Misra, Jason T. Wright et al. (2-Mar-2021)
Improved Analysis of Clarke Exobelt Detectability
(22-Sep-2019)
Transiting Quasites as a Possible Technosignature
David Kipping (10-Jul-2019)
Research Notes of the AAS
NASA and the Search for Technosignatures: A Report from the NASA Technosignatures Workshop
NASA Technosignatures Workshop Participants (20-Dec-2018)
The Exo-Life Finder (ELF) telescope: New strategies for direct detection of exoplanet biosignatures and technosignatures
S. V. Berdyugina, J. R. Kuhn, M. Langlois et al. (1-Oct-2018)
Possible Photometric Signatures of Moderately Advanced Civilizations: The Clarke Exobelt
Hector Socas-Navarro (21-Feb-2018)
Modeling Indications of Technology in Planetary Transit Light Curves
Eric J. Korpela , Shauna M. Sallmen , and Diana Leystra Greene University of California et al. (27-May-2015)
Astrophysical Journal