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Scientists & Researchers

Irving Langmuir

1948

Nobel Prize-winning GE physicist and chemist; consulted by Project Sign investigators in April 1948. Concluded available data was insufficient for positive identification and was "reluctant to consider the so-called flying discs as a reality" - an early, credentialed skeptical voice inside the government's own investigation.

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confirmedProject Blue Book
consulted by its Project Sign predecessor investigators (1948); skeptical of the flying-disc reports
Source: Declassified UAP release 04 (DOW-UAP-D097)
Part of The Red Thread Files — an independent, evidence-first investigation into the UAP, USO, and consciousness question. Confidence labels (confirmed / reported / disputed) are an automated approximation based on the wording and directness of each source, not a verdict. Corrections: [email protected].