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The ocean’s deepest part is called the Challenger Deep. It is situated underneath the western Pacific Ocean, particularly in the southern end of the Mariana Trench. 


With the depth of 35,755-35,814 feet, the Challenger Deep in Mariana Trench is recognized as the earth’s deepest point. Precisely, the Challenger Deep is located in the Pacific Ocean near the Mariana Islands group. It is somewhat tiny in size slot-shaped depression at the bottom of a substantially bigger crescent form oceanic waterway. The bottom is around 11 km long and 1.6 km wide having lightly sloping sides. Moreover, the Fais Island and Guam have been known the closest lands to the Challenger Deep.

Thousands of climbers have fortunately reached Mount Everest, the earth’s highest point. But, only very few people have settled to the deepest point of the planet. The year 1960 marked the very first persons in the name of Jacques Piccard and Lieutenant Don Walsh who have descended the Challender Deep. In fact, their drop-off took over five hours. And, spent almost 20 minutes at the ocean floor before attempting 3 hours and 15 minutes ascension.

The next successful endeavor was followed in 1995 by the underwater vehicles ROVs Kaiko and in 2009, Nereus. On March 26, 2012, James Cameron, a Canadian film director was the next and still the recent man who descent to the earth’s deepest point. The sinking lasted two hours and thirty-six minutes, having a depth record of 10,756 feet. 

Discoveries In The Deepest Part Of the Ocean

The times before the progress of technology has taken place, scientists know very little of the kinds of organisms that reside the Challenger Deep. In fact, it was thought that there is a great pressure that calcium can never be possible. They thought vertebrate bones would completely dissolve, thus, no bones nor fish could ever have existed. However, nature itself had proven these scientists wrong, as the Challenger Deep is believed to have a potential capability for adaptation. The realization of Deepsea Challenge project has provided answers to the question, ” is there a life in the Challenger Deep?”

As marine technologies have emerged in the recent years, deep-sea unmanned water vehicles or subs have spotted unusual, bizarre organisms. Not just known to be the deepest but the Challenger Deep is certainly the darkest and most terrifying place on earth. Despite that, there are totally interesting things and creatures have managed to dwell in the ocean’s deepest part. Specifically, the Challenger Deep is a resident of untypical sea anemones, sea cucumbers, various jellyfishes, sea pigs, acorn worms, and giant amphipods.



Although a lot of mysteries are still to uncover in the Challenger Deep, successful explorations have exposed few phenomenal creatures.
  • The Giant Spider Crab, measured up to 12 feet known to be the earth’s largest arthropods. Impressively, it is scrounging up to a thousand feet deep on the ocean floor.
  • The Nightmarish Fangtooth is recognized as among the deepest living fish ever identified. It has been discovered swimming at 16,500 feet depth.
  • The Vampire Squid is one strange creature that lurks in the lightless deepest part of the ocean. It is also known to be one of the earth’s largest animal.



Besides those very distinct creatures seen, frilled sharks, giant tube worms, Pacific viperfish, and the Atlantic wolfish pair are also few of the discovered creatures.

How deep is the deepest part of the ocean? The fact that the Mount Everest would fit into the Mariana Trench is absolutely astonishing. No wonder, Its enormity undeniably makes any exploration to be highly complicated.