Dozens of Chinese research vessels are on a quest to map the sea floor at strategically vital regions of the world's oceans.

Chinese vessels are mapping the sea floor at strategically vital regions of the world's oceans, building detailed knowledge of marine conditions that naval experts say would be crucial for waging ...

By Elizabeth Claire AlbertsKara Fox ・A Mongabay and CNN investigation found the eight Chinese state-owned ships that conduct ...

China is expanding ocean mapping efforts, gathering data that experts say could enhance submarine warfare capabilities.

China now operates 59 submarines, compared to the US Navy’s 71—but it has expressed the clear intention to catch up.

The U.S. Navy's submarine capabilities are still considered superior, but Beijing is working hard to catch up.

Nuclear-powered Type 094A Jin-class ballistic missile submarine of the Chinese People's Liberation Army (PLA) Navy is seen during a military display in the South China SeaReuters China’s submarine ...

China is significantly expanding its undersea mapping and monitoring operations across key oceans, gathering data crucial for ...

TAIPEI, March 20 (Reuters) - China poses a pressing threat given its military build-up continues unabated and effective ...

The Chinese Navy has "dramatically increased" submarine production and could soon deploy a new vessel able to hit "large portions" of the US with nuclear missiles from Chinese waters. Two new Chinese ...