How did robots help create a 3D map of the Titanic in 2025?

The answer

In 2025, remote-operated submarines named Romeo and Juliet hovered over the North Atlantic ocean floor to create the most detailed 3D scan ever made of the Titanic wreckage, resting 3,800 meters below the surface. Using advanced photogrammetry and sonar, the ROVs mapped every visible section of the deteriorating ship, from the iconic bow to the scattered debris field spanning several square kilometers. The detailed model provides scientists with a baseline to measure the Titanic's ongoing decay - iron-eating bacteria are slowly consuming the hull, and researchers estimate the wreck may be completely gone within a few decades. The scan also revealed previously unseen artifacts and structural details.