Scientists solve the mystery of the Stonehedge Megaliths

Scientists have solved the mystery of the origin of Stonehenge megaliths. Using geochemical data, researchers have determined that 50 of the 52 large stones, sarsen megaliths, originated from the West Woods in Wiltshire, England. According to a recent report, The sarsens were erected at Stonehenge around 2500 BC. The largest stands 9.1 metres tall. The heaviest weighs about 30 tonnes. Stonehenge's smaller bluestones  were traced to Pembrokeshire in Wales 150 miles (250 km) away, but the origin of the sarsens had defied identification. However, Researchers still don't know exactly how the 30-ton stones were transported.