Pacific Ocean

The Pacific Ocean is the largest and deepest body of water on Earth, covering more than 63 million square miles—about one-third of the planet’s surface. Its name, derived from the Latin Mare Pacificum, means “peaceful sea,” a title given by explorer Ferdinand Magellan in the 16th century. But the Pacific is anything but tranquil in spirit—it’s a dynamic force of nature, home to towering waves, volcanic islands, and some of the most diverse marine ecosystems on the planet.