Mariana Trench: 11 km down, Everest fits inside
The Pacific Mariana Trench drops 10935 meters to Challenger Deep, deep enough to swallow 8849 meter Everest whole.
10935 meters and 1000 atmospheres pressure
The crescent trench runs 2550 kilometers long and 70 kilometers wide, with Challenger Deep at 10935 meters, about 2500 meters deeper than the 8849 meter Everest is tall.
Pressure passes 1000 atmospheres or 16 tons per 10 square centimeters, with water at 2 degrees and 500 times more lead needed to sink gear through 10000 meters.
1960 2012 2019 dives and snailfish life
Trieste reached bottom in 1960 with 2 men for 20 minutes, Cameron went solo in 2012 for 3 hours, and Vescovo made 5 dives in 2019 including a 10927 meter record with 4 hours outside.
Cameras found 10 centimeter xenophyophores, 30 centimeter snailfish at 8000 meters and 200 species, proving food from 11000 meters above still feeds life in total dark.
- Depth 10935 meters at Challenger Deep
- Pressure 1000 atmospheres crushing
- Everest 8849 meters fits with room
- Trieste 1960 Cameron 2012 Vescovo 2019
- Snailfish at 8000 meters xenophyophores