Aerial view of a crop formation near East Kennett,Wiltshire,England. Crop formations are patterns of flattened plants in crops such as wheat or barley. They started appearing frequently in the mid-1980s in south-west England. Their cause is unknown. Many theories exist,ranging from science-based physical explanations such as the "plasma vortex" theory based on the phenomenon of electrohydrodynamics (EHD) to unorthodox suggestions that they are created by extraterrestrial intelligences. Circle connected to 'key' shape | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Parker, David |
Taille de l’image : | 3236 px × 3976 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |