Missing Titanic submersible live updates: Texts show OceanGate CEO dismissed concerns
Five people, including the company CEO, were aboard the sub when it imploded.
All passengers are believed to be lost after a desperate dayslong search for a submersible carrying five people that vanished while on a tour of the Titanic wreckage off the coast of Newfoundland, Canada.
The 21-foot deep-sea vessel, operated by OceanGate Expeditions, lost contact about an hour and 45 minutes after submerging on Sunday morning with a 96-hour oxygen supply. That amount of breathable air was forecast to run out on Thursday morning, according to the United States Coast Guard, which was coordinating the multinational search and rescue efforts.
Latest headlines:
- RCMP to investigate the deaths aboard Titan sub
- US taxpayer cost for search and rescue may be $1.5 million, expert says
- OceanGate CEO claimed sub was safer than scuba diving, texts show
- OceanGate co-founder defends development of submersible
- Sub's carbon-fiber composite hull was the 'critical failure,' James Cameron says
- Probe seeks answers on why Titanic sub imploded
- Navy likely detected sound of the implosion on Sunday: Official
- All lives believed to be lost: OceanGate
Why Titanic continues to captivate
The submersible that catastrophically imploded while on a voyage to see the Titanic wreckage has highlighted a high-risk, experimental and exclusive tourism opportunity to see what is largely considered to be the most famous shipwreck of all time.
The doomed ocean liner has intrigued the public from the moment it tragically crashed into an iceberg in the Atlantic Ocean and sank on April 15, 1912 -- as well as throughout the century-plus since.
Visits to the underwater site have been conducted in recent decades to retrieve artifacts, study the Titanic's gradual decay and simply lay eyes on the storied shipwreck, which has inspired a wealth of novels, plays, TV shows and films.
"The Titanic has basically been in popular culture since the night it sank," Robert Thompson, founding director of the Bleier Center for Television and Popular Culture at Syracuse University, told ABC News.
Read more about the Titanic's long intrigue here.
Company behind Titan overstated details of partnerships with Boeing, others
The company behind the submersible that imploded exaggerated the details of the industry partnerships behind the development and engineering of the underwater vessel.
In some public statements, OceanGate suggested the Titan -- its only vessel able to reach Titanic depths -- was designed and engineered with the assistance of entities such as Boeing, the University of Washington and the National Aeronautics and Space Administration. In statements to ABC News, each entity described its role, or lack thereof, as more limited than sometimes stated by OceanGate.
When asked about these exaggerations about the role of partnerships in the development of the Titan submersible, an OceanGate representative declined to comment on the matter.
Read more here.
-ABC News' Peter Charalambous
Probe seeks answers on why Titanic sub imploded
U.S. Coast Guard officials conceded they are facing a daunting investigation to determine what caused the Titan submersible to implode underwater near the wreckage of the Titanic, killing all five explorers aboard.
Officials said the 21-foot-long Titan was found in pieces by a remotely operated vehicle on a smooth section of ocean floor more than 2 miles beneath the surface.
"This was an incredibly complex case and we're still working to develop details for the timeline involved with this casualty and the response," Mauger said.
Read more about the investigation here.
-ABC News' Bill Hutchinson
What a 'catastrophic implosion' means
The Titan submersible suffered a "catastrophic implosion," the U.S. Coast Guard determined.
At the depth of the Titanic, which sits 3,800 meters below sea level, the pressure reaches a level 380 times the atmospheric pressure on the Earth's surface, Stefan Williams, a professor of marine robotics at the University of Sydney, said in a blog post on Tuesday.
A fault or failure in the hull of the Titan could have led to an implosion, as the vessel gave way to the high pressure of the deep sea, Williams said.
The implosion of a submersible delivers immense force, oceanographer Bob Ballard told ABC News on Thursday.
Read more here.
-ABC News' Max Zahn
Canadian assets on scene for assistance
A Royal Canadian Navy ship HMCS Glace Bay has been on scene since about 8 a.m. ET Thursday morning. The ship provides a medical team specializing in dive medicine and a six-person mobile hyperbaric recompression chamber, according to officials.
Canadian Coast Guard ships John Cabot, Ann Harvey and Terry Fox are on scene and ready to provide rescue equipment and personnel should assistance be required. A Royal Canadian Air Force CP-140 Aurora aircraft is also maintaining continuous on-scene support with additional aircrews and assets, according to officials.
-ABC News' Luke Barr