A Chinese aircraft carrier made one of its deepest forays into the Pacific Ocean over the weekend as Beijing continues to project its military power further from its shores.

Scientists had determined that ocean acidification enters this danger zone or crosses this planetary boundary when the amount of calcium carbonate—which allows marine organisms to develop shells ...

The U.S. Coast Guard and other agencies are searching Monday for six people that were onboard a twin-engine Cessna 414 that crashed in the Pacific Ocean three miles west of San Diego.

The Pacific Plate (in blue) was formed at the junction of three tectonic plates — Farallon, Phoenix and Izanagi — that once sat under the massive ocean Panthalassa.

The volcano, known as Axial Seamount, is more than 4,900 feet beneath the Pacific Ocean and 300 miles off the Oregon coast, but it is showing signs it will soon erupt for the first time since 2015.

A small plane headed from San Diego to Phoenix with six people on board crashed in the Pacific Ocean. All six passengers were presumed dead. Their names have not been released, as of June 9.

Twins' Royce Lewis: Perfect at plateLewis went 3-for-3 with a walk, a double and an RBI single in Friday's 6-4 loss to the Blue Jays. Lewis reached base safely in all four plate appearances, the ...

The eastern Pacific Ocean has spawned a new tropical storm, Dalila, which will swipe southern Mexico with flooding downpours and gusty winds. Meanwhile, the Atlantic basin remains dormant for now ...

The sarcastic fringehead is a feisty little fish found in the northeast Pacific Ocean. It is a type of tube blenny—a fish with a long, slender body that makes its home in unusual places.

Another is ocean acidification, also caused by burning fossil fuels. In 2023, researchers determined that six of these boundaries had already been crossed. The new research adds a worrying seventh.

The United States has established three island chains across the Pacific Ocean. The first, closest to China, is formed by three U.S. allies and partners—Japan, Taiwan, and the Philippines.