National Geographic explorer in residence James Cameron is preparing to dive into the deepest part of the world’s ocean. He’ll descend in a custom-made, vertical-dive sub that was built in secrecy over 8 years in Australia.
If Cameron’s dive is successful, he’ll join a very exclusive club. So far only two other people have made it to Challenger Deep, nearly 8 miles below the surface of the Pacific. Comparably space (500 visitors so far) and even the surface of the moon (12 visitors) seem like well-trodden destinations. Cameron will spend 6 hours of bottom time taking photos and collecting samples to examine back at the surface.