AnomalyOn December 6, 1981, at around 8:35 PM, witnesses observed a peculiar luminous phenomenon in the sky. All of them noticed a set of luminous circular shapes moving at an irregular speed within a limited perimeter. No sound was heard, and the phenomenon remained visible for about an hour before disappearing at the horizon. We lack data to put forward any hypothesis regarding the origin of this phenomenon.
Essonne, France · 1981-12-06 · from the GEIPAN archive
An account in Essonne, France
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This is an official case file of GEIPAN, the French space agency's unidentified aerospace phenomena office, machine translated from French. The original text and the full investigation file are at geipan.fr. We reproduce it with thanks and remove anything on request.