James Cameron discusses record dive and science concerns



James Cameron, the explorer and filmmaker, led a 4 December panel at the AGU Fall Meeting in San Francisco to discuss his daring dive on 26 March to the bottom of the ocean in a one-person vertical “torpedo” submarine, the Deepsea Challenger, and to present some initial science findings from expedition samples and data. The dive touched the bottom of the Challenger Deep, a valley in the floor of the nearly 11-kilometer-deep Mariana Trench in the western Pacific Ocean. The vessel landed close to the same depth and at a location similar to where Don Walsh and Jacques Piccard descended in the Trieste bathyscaphe on 23 January 1960 at a then record-setting depth of 10,911 meters.