The wreckage of the cruise ship Titanic sits on the ocean floor about 3,800 meters (12,500 feet) below the surface.
* Titan weighs 9,525 kg (21,000 lbs), and can travel at a speed of 3 knots (3-1/2 miles per hour) using electric thrusters.
OceanGate says it is equipped with powerful LED lights, a sonar navigation system and high-end camera equipment.
* OceanGate says Titan has a life-support system that can keep five people alive for up to 96 hours.
OceanGate workers on the surface ship track the location of Titan and send text messages to the pilot with navigation instructions.
Persons:
David Pogue, Jonathan Allen, Jonathan Oatis
Organizations:
OceanGate, CBS, Titan, Thomson