And the Arctic Ocean covers 16 square kilometers. Another measure of oceans is how deep they are. The deepest part of the oceans is the Mariana Trench. It runs south of Japan and just east of Guam.

To reach the bottom of the trench — the most critical aspect of the entire study — the team used a high-tech manned submarine, the Limiting Factor, a deep-submergence ... other popular places, such as ...

The Black Sea and Mediterranean Seas are both almost entirely landlocked, with the Black Sea connecting to the Aegean ... deepest parts of the ocean, known as the abyssal plain, varies from place ...

Don Walsh and Jacques Piccard making their way to the bottom of the Mariana Trench in 1960 (NOAA Ship Collection) The crew of their support vessel had located the deepest point by pretty ...

For scientists studying the mysteries of the ocean, few places on Earth hold the level of intrigue that the Mariana Trench does. As the deepest point in all the Earth's oceans, this site has ...

The deep-sea ... some places. In addition, we determined that this layer of volcanic rock was spread over 1,100 square miles (3,000 square kilometers) of this region in the southern Aegean Sea.

Xenophyophores represent "one of the few groups of organisms found exclusively in the deep sea," said Lisa Levin, a Scripps oceanographer who studied the expedition's data. "If any creatures ...

But it’s the Pacific Ocean that boasts the deepest waters on Planet Earth. About 125 miles east of the Mariana Islands—a U.S. territory north of Guam—lies the deepest place known to man.