I don't believe there was ever a "unique radiation signature." But there were some very interesting circles. Like this one, which appeared overnight next to th

I don't believe there was ever a "unique radiation signature." But there were some very interesting circles. Like this one, which appeared overnight next to the A303, which is one of the busiest roads in the area. https://www.science.org/content/article/jaw-dropper-crop-circle https://www.science.org/content/article/jaw-dropper-crop-cir... The Doug and Dave story is obviously ridiculous. IMO there's no way two fat old dudes could do something like this. It would be challenging to draw a design like this by hand on paper with drawing tools, never mind across nearly half a kilometre in a wheat field at night. At the very least it's clear it was planned, measured out, and laid with unusual competence. You'd need a team of a good few people and very possibly some surveying equipment - not impossible, but not at all a trivial project. Compare with a more recent attempt which shows what a crude circle looks like. https://nextnature.net/magazine/story/2007/crop-circles/065_crop.jpg https://nextnature.net/magazine/story/2007/crop-circles/065_...