MANILA, Philippines — It was no ordinary March morning in 2021 for Dr. Deo Florence Onda as he began to explore another world from inside a titanium submersible, free-falling toward the deepest part ...

This vehicle has an ability to dive into the depth of 11,000 m, the world’s deepest ocean bottom, and thus is called as a “full-depth submersible”. It enabled researchers to approach to the Japan ...