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The Mariana Trench is an oceanic trench located in the western Pacific Ocean, ... In December 2014, a new species of snailfish was discovered at a depth of 8,145 m ...
Sonar mapping of the Challenger Deep by the DSSV Pressure Drop employing a Kongsberg SIMRAD EM124 multibeam echosounder system (26 April–4 May 2019). Challenger Deep (CD) is the deepest known point in the Earth's seabed hydrosphere, a slot-shaped valley in the floor of Mariana Trench, with depths exceeding 10,900 meters. [1]
They returned to the "Marianas Deep" (sic) [14] in October 1951. Using their newly improved echo sounder, they ran survey lines at right angles to the axis of the trench and discovered "a considerable area of a depth greater than 5,900 fathoms (35,400 ft; 10,790 m)" – later identified as the Challenger Deep's western basin.
In August 1957, [10] She measured the depth of the Mariana Trench at 11,022 metres (36,161 ft). [6] On 29 May 1958, Vityaz was 2,000 nautical miles (3,700 km) west of the Marshall Islands when she detected radioactivity in rainfall at levels that were harmful to human health (see Operation Hardtack I). [11]
As shown by later expeditions using modern equipment, this area represents the southern end of the Mariana Trench and is one of the deepest known places on the ocean floor. Modern soundings to 6,012 fathoms (36,070 ft; 10,994 m) have since been found near the site of the Challenger ' s original sounding. [21]
In 2021, he went on a record-setting voyage to Challenger Deep in the Mariana Trench, which at 36,000 feet below sea level is the deepest part of the ocean. ... The ROV that discovered the debris.
Trieste departed San Diego on 5 October 1959 for Guam aboard the freighter Santa Maria to participate in Project Nekton, a series of very deep dives in the Mariana Trench. On 23 January 1960, it reached the ocean floor in the Challenger Deep (the deepest southern part of the Mariana Trench), carrying Jacques Piccard and Don Walsh. [13]
Cameron is a veteran of deep-sea sub diving having visited the Titanic location numerous times and ventured even deeper into the ocean when he went down to the Mariana Trench, the deepest point on ...