Several people have lobbied the federal government to make the Marianas Trench Marine National Monument a marine sanctuary, including famed director James Cameron, who visited Guam in 2012 ...

The curious minds at What If examine the possibility of a hidden Megalodon still lurking in the Mariana Trench.

The volcano is thousands of feet below the ocean’s surface, so it poses no danger to people. But under all that water, a dramatic eruption is brewing.

It's the closest many of us will get to the Mariana Trench. Editor's note: This story was updated at 11:16 a.m. EST on May 9 to reflect that E/V Nautilus departed from Apra, Guam, not from California.

In the western Pacific Ocean just east of the island of Guam and a strategic gateway to the second island chain, lies the deepest point on Earth – the Mariana Trench. In the crushing darkness of ...

The Mariana Trench is located in the Pacific Ocean, close to the US island territory of Guam The Mariana Trench is a deep and long underwater canyon located in the west of the Pacific Ocean ...

the Mariana Trench, American Don Walsh, has died aged 92. Walsh was 28 when he made the record-breaking expedition to the bottom of the seven-mile deep trench off the coast of Guam in 1960.

This part is located beneath the Western Pacific Ocean in the southern end of the Mariana Trench – which itself is several hundred km southwest of the island of Guam, a US island territory.

Before surfacing about 300 miles (500 kilometers) southwest of Guam, Cameron spent hours hovering ... Throughout the Mariana Trench dive, 3-D video cameras were kept whirring, and not just for ...

Scientists believe there is likely a volcanic eruption happening somewhere deep in the Pacific Ocean near the US Northern Mariana Islands ... separate island of Guam, located about 207km southwest.