The Pacific Ocean is the largest of the Earth's oceanic divisions. Its name is derived from the Latin name Mare Pacificum, "peaceful sea", bestowed upon it by the Portuguese explorer Ferdinand Magellan. It extends from the Arctic in the north to Antarctica in the south, bounded by Asia and Australia in the west and the Americas in the east. At 169.2 million square kilometres (65.3 million square miles) in area, this largest division of the World Ocean – and, in turn, the hydrosphere – covers about 46% of the Earth's water surface and about 32% of its total surface area, making it larger than all of the Earth's land area combined. The equator subdivides it into the North Pacific Ocean and South Pacific Ocean. The Mariana Trench in the western North Pacific is the deepest point in the Pacific and in the world, reaching a depth of 10,911 metres (35,798 ft).
The eradication of rats on McKean IslandLast Updated on 2009-11-10 at 10:08The expedition has been going fast and furious and moments to write blog entries are sometimes fleeting. The deck salon and cabins are spaces with the constant motion of people,... More »
Why are sharks important?Last Updated on 2009-11-10 at 10:03This entry is written by Stuart Sandin, Assistant Researcher of Marine Ecology at the Scripps Institution of Oceanography.
When taking toll of the ocean, there is no organism... More »