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https://www.zmescience.com/science/news-science/transients-california-1950s-non-human-technosignatures/
Mysterious Flashes in Pre-Satellite Sky in the 1950s Could Be Non-human Technosignatures
Apr 28, 2026 - A new study goes as far as saying some of the mysterious flashes over California in the 1950s could be a non-human technosignature.
non humanmysteriousflashespresatellite
https://www.seti.org/projects/technosignatures-sag/
Technosignatures SAG
Technosignatures SAG is a group of volunteer experts who have been chartered by NASA to produce a report to NASA’s Exoplanet Exploration Program, containing...
technosignaturessag
https://avalonlibrary.net/?dir=IAU_Technosignatures
IAU_Technosignatures • Avalon Library
avalon libraryiautechnosignatures