What Actually Happens If You Try to Reach the Bottom of the Ocean?

For once, the danger isn’t air. You have plenty of it, and there’s nothing out there that can get lost. The problem is the water itself. Every ten metres you sink, the ocean presses a little harder. By the bottom of the deepest known place on Earth, nearly eleven kilometres down, it squeezes your tiny metal sphere with more than a thousand times the pressure you feel at the surface. Meanwhile you sit inside breathing perfectly normal air. In this video you follow the whole dive into Challenger Deep. You’ll see why the sunlight fades colour by colour until even a red apple turns brown. You’ll learn why your submersible has to be a sphere of titanium with a cone-shaped window, and why ordinary submarines would collapse in a fraction of a second. You’ll pass through permanent night, where marine snow falls forever and most of the animals make their own light. That includes a dragonfish that hunts with a red searchlight nobody else can see. You’ll find out why deep-sea creatures aren’t crushed, and why fish stop at around eight thousand metres while life carries on without them. You’ll see how you talk to the surface with no radio and no GPS, and how the ocean is designed to give you back even if the power fails. Then comes the reframe: the bottom of the world is not untouched, and you’ll see what scientists found waiting there. By the end you’ll understand why reaching the deepest place on Earth is not the same as exploring it. If this took you somewhere new, leave a like, tell me in the comments whether you would make the dive, and subscribe for more. #DeepSea #MarianaTrench #ChallengerDeep #OceanExploration #DeepOcean #Submarine #Bioluminescence #MarineBiology #OceanFacts #ScienceExplained