Jun 26, 1959
Boianai, Papua New Guinea

Papua New Guinea from orbit — Father William Gill and 38 witnesses at Boianai Anglican mission observed a structured craft with humanoid figures over two consecutive evenings in June 1959 — NASA / Public Domain
Craft morphology
Humanoid figures approximately human-sized visible on the upper deck of the craft over two nights. They waved back at witnesses who waved at them, and appeared to respond to a flashlight signal.