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 cur… See more

Top large seas:
• Australasian Mediterranean Sea – 9.080 million km (includes other seas)
• Philippine Sea – 5.695 million km (largest single sea)
• Coral Sea – 4.791 million km … See more

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 have lain dorma… See more

The Pacific separates Asia and Australia from the Americas. It may be further subdivided by the equator into northern (North Pacific) and southern (South Pacific) portions. It extends from the Antarctic region in the Sout… 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). Surface water temperatur… See more