UFOs by type

type of supposed alien spacecraft, or UFO

term used by Allied aircraft pilots in WW2 to describe various UFOs or mysterious aerial phenomena

unidentified object submerged in water

elongated visual artifacts appearing in media

rocket- or missile-shaped unidentified flying object sighted in Nordic countries 1946

class of UFOs, with certain common features which have reportedly been observed during the 20th and 21st centuries

class of unidentified flying objects best known from a series of newspaper reports originating in the western United States and spreading east during late 1896 and early 1897

Unidentified flying objects

lights (or fires) of unknown origin