sky view with silhouette and classified message for world ufo day,

aircraft alien and anomalous artifact awareness banner black blur blurry celebration classified clouds commemoration confidential contact cosmos cover dark date day disc evidence extraterrestrial fantasy fiction float flying gradient grayscale holiday hover illustration invader invasion investigation july mystery object observation phenomena poster recording research saucer scanlines science secret shadow ship sighting silhouette sky space spacecraft spaceship technology top typography uap ufo ufology unexplained unidentified unknown vector vehicle visitor white world