EDIT: These are crop circles found in Google Earth as of March 2008. They are old now, so use the time slider in GE and move it back to around March of 2008 to view them. EDIT2: Thanks to all for the views and comments. My personal opinion is that all crop circles are man-made. I find them to be a great work of art, especially considering they are done at night, with rope and wood, and most times the makers are drunk haha. I dont believe Aliens would travel all this way just to flatten some corn.