Friday, 17 January, 2003, 14:18 GMT Scientists explain Arctic stone circlesA strange landscape explained by freezing and thawing By Dr David Whitehouse BBC News Online science editor 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. One of the real mysteries to me was how you can get labyrinths or islands of stones in one location and polygons in another Mark Kessler Elsewhere in the far north, stones also form mysterious striking patterns on the ground. According to scientists, the circles are not...