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The tragic death of five people when the Titan submersible imploded during its descent to the wreck of the Titanic has led some to describe deep-diving

United statesJon copleyGabe newellJames cameronVictor vescovoInstitute for exploration university of rhode islandUniversity of southamptonMariana trenchRussian mirDiscovery channel last mysteriesLimiting factorTriton submarinesChallenger deep