“For decades, visitors to the world-famous tomb of King Tutankhamen in Egypt have noticed ugly brown spots covering the wall paintings lining the burial chamber. And for years the Egyptian authorities worried that these blotches might be microorganisms fueled by humidity and the sweaty bodies of tourists. Now, scientists from the Getty Conservation Institute in Los Angeles have completed an analysis – determining that the spots are not alive and not a threat to any of the tomb’s illustrious attractions.”