ملف:US Navy bathyscaph Trieste being lowered into the water.png

English: The Navy bathyscaph Trieste being lowered into the water. Purchase of this deep sea research vehicle from its inventor. Jacques Piccard, has provided the Navy with an excellent tool for occanographic research. Explorations with the bathyscaph, Trieste, continued to break ocean depth records and provide generally a means for making oceanographic observations at depths never before attained by man. During the fall of 1959 Trieste broke the existing deep-diving record by descending to 18,000 feet. A new and ultimate record was set on January 23, 1960, when it descended to an official 35,800 feet below the surface, reaching the ocean floor in the deepest known chasm of the earth’s crust.