Included in the scope of undersea exploration are the physical and chemical properties of seawater, all manner of life in the sea, and the geological and geophysical features of the Earth’s crust.

The meaning of UNDERSEA is being or carried on under the sea or under the surface of the sea. How to use undersea in a sentence.

6 days ago · Divers discover a massive 5800 BC undersea wall off the French coast, revealing advanced coastal society over 7,000 years ago.

6 days ago · Divers have discovered a long-submerged wall some 7,000 years old under the sea off western France, scientists said Thursday.

1 day ago · Ukraine's security services have released video of what they said was an underwater drone attack on a Russian submarine moored at the Black Sea port of Novorossiysk. Russia countered with …

Dec 9, 2025 · Under the surface of the ocean, "constellations" of towering subsea mountains dot the Earth – and they are teeming with sharks.

2 days ago · Ukraine's Security Service said it has struck and disabled a Russian submarine using an underwater drone at the Black Sea port Novorossiysk, Russia.

Nov 5, 2025 · SYDNEY — The vast island continent here depends heavily on data and communications made possible by undersea cables, but Australia lacks the law, policy and capability to protect and …

Dec 9, 2025 · The UK has unveiled work on its groundbreaking Atlantic Bastion programme, which will make Britain more secure secure from Russian undersea threats in the North Atlantic through a …

Oct 12, 2022 · These sights, combined with the need for new fuels and food, as well as a longing for adventure, led to undersea exploration. While exciting, there are many problems people encountered …