Mysterious Baltic Ocean Circles Explained

Thursday, January 30, 2014 - 15:10 in Paleontology & Archaeology

Are they landing marks for aliens? Craters from World War II bombs? The first pictures, which appeared in 2008 after being taken by a tourist, showed some strange circular formations in the shallow waters off the famous white cliffs of chalk on the island Møn in Denmark. And then they disappeared. In 2011, the circles came back, and this time there were so many that they made it into media stories. Since those first images appeared, people have searched for an explanation.  read more

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