Both my mother and sister claim to have witnessed a UFO several years ago while driving home from a Target store which is only about a mile from my house in Marietta, Georgia.  It was late and dark outside.  Through the front window, my mother saw a pair of white lights approaching the intersection outside of the Target.  She recalled that the object, which she definitely believed was a craft, was extremely low in the sky – she said maybe the height of a telephone pole.  She could make out a boomerang shape as it moved overhead, where to her amazement, it hovered in absolute silence.
While my mother will admit being uncertain as to the craft’s identity, she suggested that it was some form of secret military technology; in particular she indicated that the craft she saw resembled the stealth fighter she had seen in photographs.  This is one popular interpretation of unidentified flying objects, and it is a viable explanation for many such sightings, perhaps including this one.  Together with this idea of futuristic military (human) technology, it seems the idea of super-advanced alien technology forms the overwhelming majority of the public sentiment on the subject of UFO’s throughout the US and most of the free world.  Though many UFO witnesses (and many who hear second hand) ascribe a spiritual nature to their experience, these interpretations and others are far outnumbered by those that focus on the future and progress of the human race.  While my mother does not believe in aliens and simply gave an honest account of what she witnessed, people of other cultures would probably have provided vastly different explanations.