Any air filled crevice of the human body would collapse in the blink of an eye under this pressure. Lungs filled with air would collapse and the bones would crush. Mariana Trench is the deepest location in earth's crust.
The pressure from the water would push in on the person's body, causing any space that's filled with air to collapse. (The air would be compressed.) So, the lungs would collapse. At the same time, the pressure from the water would push water into the mouth, filling the lungs back up again with water instead of air.
While thousands of climbers have successfully scaled Mount Everest, the highest point on Earth, only two people have descended to the planet's deepest point, the Challenger Deep in the Pacific Ocean's Mariana Trench.
The Mariana Trench is deeper than Mount Everest is tall and anything living there has to survive the cold water and extremely high pressure. Some animals, including the deep-sea crustaceans Hirondellea gigas , do live there —and they have recently had a human visitor.
Last year an expedition to the Mariana Trench made history by conducting the deepest crewed dive ever completed as it descended 10,927 metres into the Challenger Deep.
The deepest dive
The world's deepest dive on open circuit scuba stands at 332.35m (1,090ft). It was undertaken by Ahmed Gabr in Dahab in the Red Sea on 18/19 September 2014 after nearly a decade of preparation. The descent took only 15 minutes while the ascent lasted 13 hours 35 minutes.
As humans, we are unable to venture very far into the Mariana Trench due to the bone-crushing pressure deep beneath the ocean's surface. It is so strong that most deep-sea machinery struggles to function, making data collection very difficult.
More than eighty percent of our ocean is unmapped, unobserved, and unexplored. Much remains to be learned from exploring the mysteries of the deep.
All that pressure causes serious problems for people and other air-breathing animals. Our lungs fill with air, and we have air-filled spaces in our heads. Too much pressure would collapse those spaces, crushing us. Animals adapted to deep-ocean life don't have air pockets in their bodies.
You might expect the waters of the Mariana Trench to be frigid since no sunlight can reach it. And you'd be right. The water there tends to range between 34 to 39 degrees Fahrenheit.
You can feel an increase of pressure on your eardrums. This is due to an increase in hydrostatic pressure, the force per unit area exerted by a liquid on an object. The deeper you go under the sea, the greater the pressure of the water pushing down on you.
First of all, there are millions of human bodies in the ocean at any given time. They are swimming, in boats, surfing, doing research, vacationing in cruise ships, serving in the navy, and all sorts of things. Hundreds of thousands if not millions of dead bodies.
Putrefaction and scavenging creatures will dismember the corpse in a week or two and the bones will sink to the seabed. There they may be slowly buried by marine silt or broken down further over months or years, depending on the acidity of the water.
Challenger Deep is the deepest point in the world ocean. Located within the already-deep Mariana Trench in the western Pacific Ocean, the actual deepness of Challenger Deep strains the imagination.
One of the biggest challenges of ocean exploration comes down to physics. Dr. Gene Carl Feldman, an oceanographer at NASA's Goddard Space Flight Center, explains that the ocean, at great depths, is characterized by zero visibility, extremely cold temperatures, and crushing amounts of pressure.
Even as we write, the Kola Superdeep Borehole, the hole which is eight times deeper than the Mariana Trench and has been dug up to 7.5 miles (or 12,262 meters) below earth's surface, the Chinese army of explorers are drilling China's deepest ever borehole in the Xinjiang region which is oil-rich.
A limited few have descended in submersibles to research the Titanic wreckage. A few new companies offer expensive submersible tours for the adventurous and wealthy. But scuba divers will have to stick to touring the many shallow wrecks scattered around the world.
According to the US Navy dive decompression tables a diver may spend up to five minutes at 160' (47 meters) without needing to decompress during their ascent. The longer a diver stays underwater the greater their exposure to “the bends” becomes.
No, you cannot scuba dive to the Titanic. The Titanic lies in 12,500 feet of ice cold Atlantic ocean and the maximum depth a human can scuba dive is between 400 to 1000 feet because of water pressure. The increasing water pressure also restricts blood flow by constricting tissue.
The most recent visit to the Mariana trench was in March 2021 by British-American adventurer and video game designer Richard Garriott, who became the first person to visit both North and South poles, orbit Earth aboard the International Space Station and dive to the deepest part of the ocean.
The Mariana Trench, in the Pacific Ocean, is the deepest location on Earth. According to the Exclusive Economic Zone (EEZ), the United States has jurisdiction over the trench and its resources. Scientists use a variety of technologies to overcome the challenges of deep-sea exploration and explore the Trench.
The deepest part of the ocean is called the Challenger Deep and is located beneath the western Pacific Ocean in the southern end of the Mariana Trench, which runs several hundred kilometers southwest of the U.S. territorial island of Guam. Challenger Deep is approximately 10,935 meters (35,876 feet) deep.