Can Fabien Cousteau break his oceanographer granddad Jacques Cousteau's 30-day record for the longest underwater stay off the US coast? He certainly thinks so, declaring "Splashdown!" upon entering the blue.
Fabien Cousteau, 46, and eight other aquanauts dove off the state of Florida’s Key Largo coast, where they will conduct experiments in a bus-sized lab named Aquarius some 20m underwater and work with documentary filmmakers.
Cousteau and crew could be seen via live images transmitted online only minutes after they began their descent, when they declared “Mission 31 splashdown!!!” just before noon (1600 GMT) on June 1 via Twitter.