The circle, roughly 66 yards wide, was discovered by a Swiss army pilot in the northwestern town of Payerne, in a corn field just outside of the military base there.
After making the discovery, the pilot, Francois Blanchoud, reportedly asked his father, Pierre — a specialist in unexplained phenomena — to take a flight with him to look it over.
And Pierre reportedly said the crop circle is "authentic."
“The work is huge," he told the Web site."It is not humanly possible."
The owner of the field said he will harvest the corn in 10 days, but the circle will remain because he will not collect the flattened corn.