The Cote Photo: Reexamining a 1971 Costa Rican UFO Image
To the point
A 1971 Costa Rican mapping mission over Lake Cote produced a sharply defined metallic disc photographed on film, and a documentary by Adam Pillon and Megan Woomer traces its origins, preserves a high-resolution scan, features researchers including Leslie Kean, and argues it is the most compelling public-domain UFO photograph.