Images from a dive into the South Pacific's New Hebrides trench, which discovered marine creatures including cusk eels and bright red prawns.
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The oceans are a lot more uncharted than our maps would have us believe. New satellite technology can help fill in the seafloor gaps.
The eight nations with Arctic territory aren't prepared to respond to a major shipwreck, reports a new study.
A man claims his fishing vessel was blown off course near Mexico and washed ashore at the Marshall Islands 13 months later, but officials are skeptical.
At subduction zones, where one plate bends deep beneath another, the sinking plate can carry more than an ocean's worth of water into the mantle over billions of years.
Four British women are attempting to take on the Pacific Ocean next year, by attempting to row across the 8,446-mile (13,600 kilometers) expanse unassisted.
A translucent underwater cave dweller that looks like a skeleton and travels like an inchworm is the newest member of California's array of marine life.
After 130 days at sea, a Canadian rower has become the first North American woman to complete a solo journey across the North Atlantic Ocean, arriving in France this morning.
In the next 10 years, the tropics will undergo "unprecedented" climate change effects, long before the Arctic sees big shifts, according to an analysis of global warming trends published today.