strange orbs of light are believed to be the reason behind the crop circles. And funny enough orbs of light have been reported at sites that are reportedly haunted. So they might be caused by humans after all, just ones that have stopped breathing............ I have a dvd on crop circles and it shows a bright white orb of light moving along the ground. The people doing the filming were told of the formation in the crop by a local pilot. So they drive out to see it when they get there there are already two air force helicopters there. they are filming then you can see the orb of light moving about. funny thing is when the helicopter pilot knows there around, one of the helicopters buzzes them very close, to close to endanger the general public on a public road. They didn't want them there. If they are not real and made by jokers why are the air force checking them out and checking out the orb of light as well.
UFO's are not little green/grey men from space if they were then they wouldn't be UFO's as the U in UFO stands for Unidentified.
One more thing most of the crop circles in England are near some type of ancient structure like stone mounds and stone hedge. and the crop formations have been going on for a very long time. Thats why they have these ancient markers there. I think the formations the real ones at least have something to do with the area they are in and not something coming to the area to make them. Star trek might not be real but Star gate might be