The Pacific Ocean is the largest of the Earth's ocean basins, according to the National Ocean Service. It contains more than half of the free water on Earth, spanning around 63 million square miles .

A U.S.-French satellite that will map almost all of the world’s oceans, lakes and rivers rocketed into orbit Friday. The predawn launch aboard a SpaceX rocket from Vandenberg Space Force Base in ...

The oceans cover over 70% of the Earth’s surface. The marine ecosystem is the largest and most abundant in the world. But most of the ocean is permanently dark and incredibly difficult to observe.

June 8 was UN World Oceans Day, and this year's theme is "Wonder: Sustaining What Sustains Us." One researcher who has spent years exploring these wonders is Vicki Ferrini, a marine geophysicist ...

Only about 4% of the world's oceans remain undamaged by human activity, according to the first detailed global map of human impacts on the seas. A study in Science journal says climate change, fishing ...

Global ocean map could increase safety, give early tsunami alerts : Short Wave Scientists have mapped less than 25% of the world's seafloor. Experts say that getting that number up to 100% would ...