Guam was the answer we came up with without the use of an atlas. (After pulling out an atlas we discovered that) the Mariana Trench is part ... go there carry bottled water, your passport and ...

Don Walsh and Jacques Piccard making their way to the bottom of the Mariana Trench in ... so most of the trench is in permanent darkness, while water at the bottom is only a degree or two above ...

A series of undersea mud volcanoes and hydrothermal vents in the Mariana Trench also support unusual life-forms, according to NOAA. Despite the highly acidic and infernally hot water produced by ...

The bottom of the Mariana Trench is about 35,876 feet (10,935 meters ... or a pressure sensor deployed on the seabed that can help gauge how much water lies above it, Greenaway said.