I wanna say atleast 7 or 8, I had dreams about aliens would arrive in my frontyard and abduct me each time, Ive had many occasions. Then star wars and star trek encouraged me more into the study of other life in the stars... My recent dream in had was I fell asleep at my girlfriends house, I woke up early morning, then bright lights and no sound filled the bedroom windows, got numb, then woke up.... or were they dreams at all? funny thing is I remember them all until the part when I would be abducted then I would "wake up". pretty interesting... as far as seeing a actual one I am not sure.. I am always looking in the sky at night, I see satellites, planes, stars and planets but could I of misread one who knows.