Arctic stone circles

This will probably upset some von Däniken types:

Researchers may have an explanation for the natural near-perfect circles of stones that cover the ground in parts of Alaska and the Norwegian islands of Spitsbergen.

Elsewhere in the far north, stones also form mysterious striking patterns on the ground.

According to scientists, the circles are not the result of ancient art but due to cyclic freezing and thawing of the ground that drives a simple feedback mechanism that generates the patterns.

Posted by David on January 17, 2003 10:34 AM