What Happens When A Window Cracks 30,000 Ft Under The Sea?
And how two men found out

On January 23rd, 1960 two men set out to do the impossible. Jacques Piccard and Don Walsh were boarding a heavily modified research submarine with the goal of reaching the deepest part of the world’s oceans in person. That spot is known as Challenger Deep and it lies over 35,000 feet deep in the darkest depths of the…