RIP NEREUS: ONE-OF-A-KIND OCEAN ROBOT

Something major in the ocean exploration community happened last Friday. We lost the Nereus HROV while it was exploring the Kemadec Trench in the South Pacific, one of the deepest trenches in the world, while on an incredible 6 mile dive. Nereus was a one-of-a-kind robot and a real loss.
http://web.whoi.edu/hades/a-sad-day/

Deep-sea vehicle lost 6 miles down. It imploded under the immense pressure of about 16,000 pounds per square inch at those ocean depths.