Add Yahoo as a preferred source to see more of our stories on Google. In one example, the Dong Fang Hong 3, a research vessel operated by Ocean University of China, spent 2024 and 2025 sailing back ...

China is conducting a vast undersea mapping and monitoring operation across the Pacific, Indian and Arctic oceans, building detailed knowledge of marine conditions that naval experts say would be ...

Beneath the surface of the world’s oceans, a strategic competition is unfolding that most people never see. While headlines focus on aircraft carriers and hypersonic missiles, China is quietly ...