The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the … See more

Prehistory
Across the continents of Asia, Australia and the Americas, more than 25,000 islands, large and small, rise above the surface of the Pacific Ocean. Multiple islands were the shells of former active volcanoes that … See more

The climate patterns of the Northern and Southern Hemispheres generally mirror each other. The trade winds in the southern and eastern … See more

In the early 16th century, Spanish explorer Vasco Núñez de Balboa crossed the Isthmus of Panama in 1513 and sighted the great "Southern Sea" which he named Mar del Sur (in Spanish). Afterwards, the ocean's current name was coined by Portuguese explorer See more

Top large seas:
• Australasian Mediterranean Sea – 9.080 million km (includes other seas)
• Philippine Sea – … See more

The Pacific separates Asia and Australia from the Americas. It may be further subdivided by the equator into northern (North Pacific) and … See more

The volume of the Pacific Ocean, representing about 50.1 percent of the world's oceanic water, has been estimated at some 714 million cubic kilometers (171 million cubic miles). … See more