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| Over 10,000 crop circles have been reported in around 30 different countries |
Crop circles have been appearing in fields all over the world for the past 30 years. They range from simple, geometric patterns to complex and carefully made compositions.
There have been suggestions that they are made by flying saucers landing and flattening the crops, or even that they are messages left by visiting aliens. Others think they are created by microwave beams from satellites orbiting the Earth.
Other more rational explanations are that crop circles are man-made hoaxes, attempting to convince the public of extra-terrestrial life on Earth. Some would argue why would aliens travel all the way to our planet just to flatten a few wheat fields? Why not make contact another, more easily recognisable way?
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