I came across
this Canadian researcher awhile ago, who suggests that magnetic waves from the earth mess with our temporal lobes and cause people to see UFO's...I don't buy it since the similarity in experience between observers would be tough to explain...but nevertheless
he then proceeded to invent a helmet that creates incredible sensations...often a feeling of god/angels/demons/aliens in&around people (research partially funded by US Navy) which causes some interesting questions to be posed about whether we are 'hard-wired' for 'religious' experiences and if so, what biological purpose would THAT serve (unless there are Angels/Demons/Aliens
)