LOL. UFO`s do exist and have been tracked on radar at over 7000 mph. This is a matter of fact. The questions aren`t whether they exist, its more what are they, how are they controlled, powered, and by what.
Small minded to say " they dont exist because i havent seen one or a Hi Def quality video of one "
Doesnt mean to say that they are piloted by little green fellas from another civilisation but thats not beyond possibilty or the laws of Physics either.
Vast majority of sightings are man made. Weather balloons, satellites, planes, test aircraft.
Ive got an interest in this stuff too. More interested in the Universe and how it works. Read a lot of books, watch docs etc
Theres plenty of stuff i dont believe in, ghosts, God, fate but lets face it, its not impossible for life to exist elsewhere in the Universe. In fact its almost a certainty.