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Alien Mindscapes-A Perspective on the Search for Extraterrestrial Intelligence. [PDF]
Astrobiology, 2016 Advances in planetary and space sciences, astrobiology, and life and cognitive sciences, combined with developments in communication theory, bioneural computing, machine learning, and big data analysis, create new opportunities to explore the probabilistic nature of alien life. Brought together in a multidisciplinary approach, they
Cabrol NA.
europepmc +4 more sources
A Calibrated Bayesian Search for Potential Chemical Technosignatures in Polluted White Dwarfs
The Astrophysical JournalWe present a meteorite-calibrated Bayesian framework for searching archival abundance records for chemical technosignatures —operationally, compositional patterns better explained by an idealized “processed” template (endmember) than by the empirical ...
Bo-Lun Huang +2 more
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Detecting Extraterrestrial Civilizations that Employ an Earth-level Deep Space Network
The Astrophysical Journal LettersA major aspect of the search for extraterrestrial intelligence (SETI) involves searching for electromagnetic transmissions from extraterrestrial sources, often using our own transmissions as a guide.
Pinchen Fan +2 more
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Life in a Random Universe: Sciama's Argument Reconsidered
The Astrophysical JournalRandom sampling in high dimensions has successfully been applied to phenomena as diverse as nuclear resonances, neural networks, and black hole evaporation. Here we revisit an elegant argument by the British physicist Dennis Sciama, who demonstrated that
Zhi-Wei Wang, Samuel L. Braunstein
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The Astronomical JournalThe search for extraterrestrial intelligence (SETI) commensal surveys aim to scan the sky to detect technosignatures from extraterrestrial life. A major challenge in SETI is the effective mitigation of radio frequency interference (RFI), a critical step ...
Li-Li Zhao +8 more
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Periodic Radio Technosignature Search Toward 3I/ATLAS with FAST
The Astronomical Journal3I/ATLAS, the third confirmed interstellar object discovered in the solar system, provides a unique opportunity for targeted technosignature searches. We report a periodic radio technosignature search toward 3I/ATLAS using the Five-hundred-meter Aperture
Li Jian-Kang +3 more
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SETI@home: Data Analysis and Findings
The Astronomical JournalSETI@home is a radio Search for Extraterrestrial Intelligence (SETI) project that looks for technosignatures in data recorded at the Arecibo Observatory.
David P. Anderson +4 more
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Ground to Dust: Collisional Cascades and the Fate of Kardashev II Megaswarms
The Astrophysical JournalExtraterrestrial intelligences are speculated to surround stars with structures to collect their energy or to signal distant observers. If they exist, these most likely are megaswarms, vast constellations of satellites (elements) in orbit around the ...
Brian C. Lacki
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Gaia DR3 Limits on Stellar Engine Technosignatures in Nearby Stars
The Astrophysical JournalAn operating stellar engine that transfers momentum to its host star could produce an approximately persistent transverse acceleration during the Gaia Data Release 3 (DR3) observing epoch. We ask how common such stellar-engine-like accelerations could be
Bo-Lun Huang +3 more
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Narrowband Radio Technosignature Search Toward 3I/ATLAS with FAST
The Astrophysical Journal3I/ATLAS is the third confirmed interstellar object passing through the solar system. In this work, we conduct a narrowband radio technosignature search toward 3I/ATLAS using the Five-hundred-meter Aperture Spherical Telescope (FAST) L -band multibeam ...
Jian-Kang Li +2 more
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