Deep beneath Stonehenge, ground-penetrating radar has just exposed something that has left researchers baffled—an enormous, artificially aligned structure buried at a depth technology should not be able to detect. The scan, conducted as part of a routine conservation survey, revealed a perfectly geometric network of tunnels radiating far beyond the visible monument.
A new analysis of Stonehenge, carried out with the help of artificial intelligence, suggests the famous monument is part of a much larger network of buried structures than previously understood. Researchers fed years of ground-penetrating radar and magnetometer data into an AI program designed to identify patterns in the landscape. The program produced a three-dimensional map of the area and ident…