Travel along on a record-breaking descent to the deepest spot in the ocean.
Divers wrangle a 3-D camera while filming a test in the New Britain Trench off Papua New Guinea. The sub bristles with lights, cameras, and scientific equipment. Image © Mark Thiessen/National Geographic
Deepsea Challenger launched from the Mermaid Sapphire, the sub relies on 180 different systems, from battery packs to sonar.
A panel of LED lights illuminates the bottom during a test dive off the Ulithi Atoll. Sediment samples later collected in the Mariana Trench revealed previously unknown microorganisms.
The images are from the June issue of National Geographic magazine.
source National Geographic