Titanic tourist submarine disappears in Atlantic Ocean
The Story of the First Manned Expedition to the Sunken Wreck of the 'Titanic', Smart News
Sub Exploring Titanic Wreck With Five Aboard Goes Missing - 2EC
You Can Take a Tiny Sub to the Titanic Shipwreck—for $125,000
Inside Titanic sub mission with '1% chance' of success as rescuers listen for hull thuds before air runs out on Thursday
Missing Titanic sub: What to know about submersible search, tour location - The Washington Post
Robert Ballard found the Titanic wreckage in 1985. Here's how he discovered it and what has happened to its artifacts since. - CBS News
Titanic tourist submersible carrying 5 goes missing - Rediff.com
Titan submersible updates: Rescuers race to find the Titan before air runs out : NPR
Titanic: Where is the Titanic wreckage? Location revealed as tourist submarine goes missing
Reporter recounts harrowing 2000 trip to visit the Titanic