UFO Caught In Aurora by NASA!

UFO caught by NASA, now you still think we are alone in this planet? what are the UFOs doing there. maybe, they want to overtake the planet from the humans. 

UFO, in its most general definition, is any apparent anomaly in the sky (or near or on the ground, but observed hovering, landing, or departing into the sky) that is not readily identifiable as any known object or phenomenon by visual observation and/or use of associated instrumentation such as radar. These anomalies were referred to popularly as “flying saucers” or “flying discs” during the late 1940s and early 1950s.