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Jacques Cousteau's grandson aims for record 31 days underwater

Image: Fabien Cousteau looks through the window of the Aquarius habitat in the Florida Keys National Marine Sanctuary, Florida
Fabien Cousteau, grandson of underwater pioneer Jacques-Yves Cousteau, looks through the window of the Aquarius habitat located 63 feet (19.2 meters) below the surface of the ocean near the deep coral reef in the Florida Keys National Marine Sanctuary, Florida, in this undated handout picture provided by Mission 31. On June 1, 2014 Fabien Cousteau and a team of researchers and documentary filmmakers will descend to Aquarius, an underwater base off the Florida Keys for one month. Cousteau will top his great grandfather's 1962, 30-day stay in an underwater lab in the Red Sea by one day in deeper waters. REUTERS/Mission 31/Handout via Reuters (UNITED STATES - Tags: SOCIETY SCIENCE TECHNOLOGY ENVIRONMENT) ATTENTION EDITORS - THIS PICTURE WAS PROVIDED BY A THIRD PARTY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THE AUTHENTICITY, CONTENT, LOCATION OR DATE OF THIS IMAGE. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS. NO SALES. NO ARCHIVESHANDOUT / Reuters