oceangate Titan submersible creator added to Wikipedia's "List of inventors killed by their own invention" Mark Frauenfelder
Technology The Titanic tourist sub that is now missing used "improvised" technology; it was steered by a game controller Ruben Bolling
passengers Lost sub's company OceanGate was warned about safety and possible "catastrophic"outcomes back in 2018 Carla Sinclair
titanic Video: The Titanic is still sunk but now you can see it at stunning 8K resolution David Pescovitz
exploration You can take a diving tour of the Titanic wreck for $125,000 beginning May 2021 Thom Dunn