A new documentary about the Titanic reveals details about the ship's final hours using a full-size 3D image and a 'digital twin' of the vessel. The images seem to confirm eyewitness accounts that ship engineers worked until the very end to keep the ship's lights on — resulting in their own deaths.

An unprecedented two-year scanning project has produced the first-ever "digital twin" of the Titanic wreckage, offering new insights into the 1912 disaster.