Lasers Used to Unlock the Hidden Secrets of Stonehenge

3-D lasers are being used to reveal carvings on the stones at Stonehenge. Wessex Archaeology began scanning at Stonehenge with 3-D lasers in 2002 and now the research has revealed never before seen carvings and markings left by bronze axes. So far, scans of three stones have been completed, with plans to scan all 83 in the future. The low-energy laser does not damage the stones.

"With more time we could uncover many more and make plainer the outline of some known carvings that are difficult to see," said Tom Goskar of Wessex Archaeology. "This would give us a much better idea of the extent of the carvings and help us achieve a greater understanding of the monument."

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