Crop Circles: Distinguishing Hoaxes from Anomalies—Plasma Theories and the Meteoric Iron Evidence
To the point
Peter Dunn argues that crop circles range from hoaxes to genuine phenomena, and some features—such as knee-shaped deformations in the nodes, absence of plank marks on stems, hollow cavities from rapid heating, and magnetized iron spheres—point toward a plasma-based mechanism involving meteoritic iron rather than simple fakery.
