The deepest point of the Mariana Trench is called The Challenger Deep, so named after the British exploration vessel HMS Challenger II, and it is located 210 miles south-west of Guam. A depth of -10,911 meters was reached in 1960 by the Trieste, a manned submersible owned by the U.S. Navy.
The descent took almost five hours and the two men spent barely twenty minutes on the ocean floor before undertaking the 3 hour 15 minute ascent.
The Pressure at the deepest part of the Mariana Trench is over 8 tons per square inch. |