Other crossword clues for answer "UFO"UFOsomething studied by the Advanced Aerospace Threat Identification Program, for shortsubject of many a grainy videowhat a high-altitude balloon might be mistaken forvisitor from a faraway placesci-fi sky sightingfrequent conspiracy subjectalien’s ride, for shortsupposed Roswell crasherit might turn out to be a droneklaatu’s vehicle in “The Day the Earth Stood Still”mysterious sky sightingdish seen around the world?peculiar light in the sky, in briefship for 28-Acrossworld traveler?what Venus is sometimes mistaken for, due to its brightnesssubject of many a conspiracy theory