A Global Deep-Sea Race

Exploring the deepest trenches is no longer a one-nation effort. After the Trieste, decades passed before crewed dives to full ocean depth resumed.

China's Fendouzhe reached the bottom of the Mariana Trench in 2020, carrying three crew and broadcasting live video. Japan's Shinkai 6500 and a growing fleet of private submersibles now probe the abyss as well. The race to explore the deep ocean draws multiple nations competing for scientific prestige and access to potential resources.