Reviving Interest in the Seas Pictured: The adventures of Jacques Cousteau, his research vessel the Calypso, and his soucoupe plongeante (diving saucer, aka “Denise”) that he co-designed in 1959 captured the imaginations of generations. Editor’s Note: xyHt is honored to feature insights from these two distinguished scientists in the fields of hydrography, marine surveying, and...