Another pseudoscientific hypothesis is that a man-made satellite in Earth orbit is using some kind of beam (e.g., microwaves) to create the designs. Heating stems of wheat with a short intense burst of microwave energy can produce wilting similar to that in a crop circle. Flattened stems often have the bend just below a stem-node, and also may feature blackened burn holes indicative of intense heating. Microwave heating has been shown to be capable of producing these effects. It is postulated by believers of this theory that the U.S. Pentagon's "Star Wars" program has a satellite capable of delivering such a microwave beam. However, there is a reasonable counter-argument to this stating that there were no traces of supposed radiation detected in the crop circles. Crops that were bent using the microwave technique showed all signs of various radiations and moisture differences. The original crops in the crop circle showed no abnormalities compared to normal crops, except for being mysteriously bent.
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