By Melissa Hogenboom, 13 October 2016
The purpose of Scotland's ancient stone circles is one of archaeology's most enduring mysteries. A new theory claims to hold the answer
Across Scotland there are patterns of various-shaped stones, often dotted together in rings.
Two of these stone circles – Stenness and Callanish, on the isles of Orkney and Lewis respectively – are believed to be among the UK's oldest, dating back some 5,000 years. There are many more scattered around the Scottish countryside.
As some of the stones weigh 10 or more tonnes, transporting them was a considerable undertaking. But the real reason for their creation, and why they were placed in the locations where they are found, has long been a mystery.
One group of researchers led by Gail Higginbottom from the University of Adelaide claim to have the answer. They have found evidence that these stone circles were erected with cosmic influences: that is, they were placed specifically to better see the Sun, the Moon and the stars.
But this may not be the whole story.
http://www.bbc.com/earth/story/20161012-the-strange-origin-of-scotlands-stone-circles
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