Other crossword clues for answer "UFOS"UFOSsci-fi vehiclesthey’re out of this worldtypically, they turn out to be military aircraftsightings of them can be reported on the Enigma appfocus of the U.S.A.F.’s Project Blue Book (1952-1969)popular tabloid subjectsalien conveyancessETI subjectssci-fi conveyancesalien transportscauses of some mysterious radar blips, in briefinterplanetary craft, for shortvehicles in some tabloid photosships passing in the night?