Mystery wreck discovered in the Baltic Sea UPI Science News From the Science & Technology Desk Published 10/8/2002 3:06 PM STOCKHOLM, Sweden, Oct. 8 (UPI) -- The Royal Swedish Navy said Tuesday it has discovered an underwater mystery shipwreck with skulls littering its centuries-old wooden decks. The sailing ship, which marine archaeologists think is more than 200 years old, was found standing upright on the bottom of the Baltic Sea. The reason for why it sank is so far an enigma, because its hull and masts remain perfectly intact. "We don't have any clues whatsoever right now on what made...