Titan Disaster Forces Global Rethinking of Deep Sea Exploration

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When five men died on June 18, 2023, in the implosion of the Titan submersible during a dive to the Titanic’s resting place, the knowledge of Paul-Henri Nargeolet was lost too. It was Nargeolet’s 38th dive to the sunken liner. Known as Mr. Titanic, he helped retrieve thousands of artifacts that have been displayed in museums and at events around the world. One year later, the company he worked for as director of underwater research is preparing a July expedition that will employ a pair of robots instead of people in submersibles looking for more treasures to bring up in the future. Jessica Sanders, president of RMS Titanic which is organizing the expedition, said, “there’s an art to artifact recovery and a human element that technology can never replace — and shouldn’t.” She said Mr. Nargeolet had embodied that kind of expertise. On the other hand, she said the results of the robotic expedition, “will speak for themselves.” The plans of Mr. Nargeolet’s former employers show one of the more immediate effects of the Titan disaster: a prioritization of robots for plying the icy depths in place of humans piloting submersibles. The robots are seen as safer.