Scientists crack mystery of the origin of Stonehenge's giant stones

Scientists have solved an enduring mystery about Stonehenge, determining the place of origin of many of the megaliths that make up the famed monument in Wiltshire, England, thanks to a core sample that had been kept in the United States for decades.

Geochemical testing indicates that 50 of Stonehenge's 52 pale-grey sandstone megaliths, known as sarsens, share a common origin about 25 kilometres away at a site called West Woods on the edge of Wiltshire's Marlborough Downs.