Technosignature Research Portal
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Industrialization
Artificial Light or Heat
Artificial Satellites
Atmospheric Emissions
Interplanetary Engineering
Asteroid Mining
Geoengineering
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Waste Disposal
Interstellar Travel
Probes
Spacecraft
Stellar Engines
Communications
Gravitational Waves
Neutrino Communications
Optical Communications
Radio Communications
Spacecraft
Interstellar spacecraft may be employed for a variety of purposes, including the transportation of passengers to distant colonies, and thus may be easier to detect than automated probes because of the constraints of size, habitability or speed. There are myriad arguments against the viability of interstellar migration, primarily due to the distances involved, but there are also conceivable "doomsday" scenarios where civilizations may have no other choice but to embark on such journeys.
Detectability
Most strategies for detecting spacecraft in transit rely on observing active propulsion, such as the effluvia of an antimatter engine.
Research
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 Huston
,
Jason T. Wright
Acta Astronautica
15-Nov-2021
Research Programs Arising from 'Oumuamua Considered as an Alien Craft
Martin Elvis
25-Oct-2021
The First Interstellar Astronauts Will Not Be Human
Stephen Lantin
,
Sophie Mendell
,
Ghassan Akkad
,
Alexander N. Cohen
,
Xander Apicella
,
Emma McCoy
,
Eliana Beltran-Pardo
,
Michael Waltemathe
,
Prasanna Srinivasan
,
Pradeep M. Joshi
,
Joel H. Rothman
,
Philip Lubin
Acta Astronautica
17-Sep-2021
Stellar Gravitational Lens Engineering for Interstellar Communication and Artifact SETI
Stephen Kerby
,
Jason T. Wright
The Astronomical Journal
8-Jul-2021
SETI in 2020
Jason T. Wright
Acta Astronautica
14-Jun-2021
Galactic Traversability: A New Concept for Extragalactic SETI
Brian C. Lacki
International Journal of Astrobiology
19-May-2021
'Oumuamua as a light sail -- evidence against artificial origin
S.J. Curran
Astronomy & Astrophysics
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
23-Oct-2020
Contact Inequality -- First Contact Will Likely Be With An Older Civilization
David Kipping
,
Adam Frank
,
Caleb Scharf
International Journal of Astrobiology
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
Research Programs Arising from 'Oumuamua Considered as an Alien Craft
Martin Elvis (15-Nov-2021)
The First Interstellar Astronauts Will Not Be Human
(25-Oct-2021)
Acta Astronautica
Stellar Gravitational Lens Engineering for Interstellar Communication and Artifact SETI
(17-Sep-2021)
The Astronomical Journal
SETI in 2020
(8-Jul-2021)
Acta Astronautica
Galactic Traversability: A New Concept for Extragalactic SETI
(14-Jun-2021)
International Journal of Astrobiology
'Oumuamua as a light sail -- evidence against artificial origin
(19-May-2021)
Astronomy & Astrophysics
Concepts for future missions to search for technosignatures
Hector Socas-Navarro, Jacob Haqq-Misra, Jason T. Wright et al. (2-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