The Complexity of Crop Circles

I remember when i was a little kid, there was this phenomenon of crop circles. They would appear overnight on farm lands in which perfect circles would appear. And o time, the complexity of these crop circles got mind boggling. Can we recreate it with lazer technology from space? It is a concrete evidence of of human beings creating this thing, right? I think there is an article in which the people who created that, that structure, the actually came forth and they showed how it was done in the past.