A clay tablet that has baffled scientists for 150 years has been identified as a witness’s account of the asteroid suspected of being behind the destruction of Sodom and Gomorrah. Researchers who cracked the cuneiform symbols on the Planisphere tablet believe that it recorded an asteroid thought to have been more than half a mile across. The tablet, found by Henry Layard in the remains of the library in the royal place at Nineveh in the mid-19th century, is thought to be a 700BC copy of notes made by a Sumerian astronomer watching the night sky. He referred to the asteroid as “white stone bowl approaching” and recorded it as it “vigorously swept along”. Using computers to recreate the night sky thousands of years ago, scientists have pinpointed his sighting to shortly before dawn on June 29 in the year 3123BC. About half the symbols on the tablet have survived and half of those refer to the asteroid. The other symbols record the positions of clouds and constellations. In the past 150 years scientists have made five unsuccessful attempts to translate the tablet. Mark Hempsell, one of the researchers from Bristol University who cracked the tablet’s code, said: “It’s a wonderful piece of observation, an absolutely perfect piece of science.” more:http://www.timesonline.co.uk/tol/news/uk/s...icle3649054.ece