This undated image made available by Vesuvius Challenge shows an X-ray scan of part of papyrus scroll PHerc.172, showing the word 'disgust', one of hundreds of papyrus scrolls found amid the remains of a lavish villa at the Roman town of Herculaneum, which along with neighboring Pompeii was destroyed when Mt. Vesuvius erupted in A.D. 79. (Vesuvius Challenge via AP)