Intense blue rectangle over Plouguenast in 1984

Summary

Around 5 a.m. on February 5, 1984, several people in Plouguenast witnessed a rectangular object radiating such intense pale-blue light that night briefly looked like day. It moved silently from north to south at high speed, remaining visible for five to eight seconds before disappearing over the horizon. Witnesses gave consistent descriptions, prompting investigators to consider a possible atmospheric entry. GEIPAN classified the case as B — inconclusive, yet the testimony's coherence keeps it noteworthy.