The US Navy recently completed tank tests of a new deep-diving suit called the Deep Sea Expeditionary with No Decompression (DSEND) system that is light and flexible, yet maintains sea-level internal ...

ARLINGTON, Va.—The lights above the water’s surface cast a ghostly glow on the bottom of the sprawling tank, as a U.S. Navy diver deftly swam through a sunken aircraft fuselage. Wearing a special ...