Click here to enjoy more videos: http://documentary.googleusd.com \r<br> \r<br> An unidentified flying object, or UFO, in its most general definition, is any apparent anomaly in the sky that is not identifiable as a known object or phenomenon.\r<br>\r<br>\r<br>\r<br>An unidentified flying object, or UFO, in its most general definition, is any apparent anomaly in the sky that is not identifiable as a known object or phenomenon.\r<br>\r<br>An unidentified flying object, or UFO, in its most general definition, is any apparent anomaly in the sky that is not identifiable as a known object or phenomenon.
