World's Greatest Mysteries - Sydney Morning Herald
URL: http://www.smh.com.au/tv/series/show/worlds-greatest-mysteries/crop-signs-5000568.html
Submitted: Tue Sep 09 2014
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CT: UFOSeek News 2014 : World's Greatest Mysteries - Sydney Morning Herald
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Description:
Are crop circles found all over the world elaborate hoaxes or complex messages from extraterrestrials? Watch the evidence and then decide. What really killed the dinosaurs? The impact of a giant asteroid? The fossil record may point to a different kind ...