Uploaded May 2026 | Updated September 2026, 2 weeks ago

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Paul Gilster of Centauri Dreams joins John Michael Godier to explore “lurkers,” Bracewell probes, and the possibility that advanced civilizations may be observing us undetected.
centauri-dreams.org

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FOOTAGE:
NASA
ESA/Hubble
ESO - M.Kornmesser
ESO - L.Calcada
ESO - Jose Francisco Salgado (josefrancisco.org)
NAOJ
University of Warwick
Goddard Visualization Studio
Langley Research Center
Pixabay