answered:
Look I’m not the superstitious type… but of all supernatural stories….. ghosts are like… the most possible, yknow…
Aliens in general aren't supernatural, they're just a statistical probability. Stories of little green men in UFOs abducting cows... those probably aren't real.
supernatural is just stuff that doesnt follow the natural order of the universe. stuff that physics as we know it cant explain. aliens are not supernatural as they simply have a higher understanding of physics than humans to achieve space travel of the assumed level.