What lies beneath: The Titanic as never seen before

A two-month expedition to the bottom of the ocean has produced some of the most detailed images of the wreck of the Titanic ever seen.

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As the 100th anniversary of the ship's sinking approaches, a complete sonar survey of the entire area has revealed never-before-seen views of the site. Three robotic vehicles allowed the Woods Hole Oceanographic Institution (WHOI) to produce high-resolution images of the entire ship – inside and out. “Now we know where everything is,” said William Lange, of the WHOI, in Massachusetts. “After a hundred years, the lights are finally on.”

The images have been released in National Geographic's April edition to coincide with the 100th anniversary of the disaster, which took place on 15 April 1912.