Three theories have emerged as to how a supertanker was damaged as it left the Strait of Hormuz on Wednesday morning.Initially, the owners of the M Star said that it may have been attacked as crew reported seeing a flash of light on the horizon shortly before there was an explosion on board.Then some experts said that it may have been hit by a large wave. Now, others are speculating as to whether it collided with something. The ship is currently moored off Fujairah.