世界で最も深いマリアナ海溝
The Mariana Trench is the deepest ocean trench on Earth. Its lowest point, the Challenger Deep, is about 11,000 meters deep—deep enough to fit Mount Everest (8,848 meters) inside. This extreme environment is home to deep-sea creatures that can withstand intense pressure. Humans have reached the trench’s deepest point only twice, in 1960 and 2012.
