French CNES units investigating aerial anomalies since 1977, evolving through GEPAN, SEPRA, and GEIPAN operations today
Evolution of France's UAP Office
CNES formed GEPAN in 1977 to study unidentified aerospace phenomena with scientific rigor.1 The office became SEPRA in 1988 and was reorganized again in 2005 as GEIPAN, which continues to publish case files online.2345