The Death Ship – The Ourang Medan sent out a chilling SOS. Those answering found a ship full of corpses with terrified expressions frozen on their faces. Before the ship could be towed to port, it exploded and with it went answers to what might have happened. A great number of theories abound including alien abduction to more conventional possibilities such as methane bubbles. No one really knows for certain, which makes it one of the greatest maritime mysteries ever.