Exploring the deep! On January 23, 1960, Jacques Piccard and US Navy Lieutenant Don Walsh made the first epic voyage into the deep. The research bathyscaphe Trieste carried the two men 10,911 meters below the ocean surface to the Challenger Deep of the Mariana Trench near Guam in the Pacific. “Their dive fueled public interest in the deep ocean and opened the door to possibilities never before available,” according to our friends over at @oceandiscleague. “Today, worldwide, we celebrate the wond

He was one of the first explorers to dive to the deepest depths of the ocean. In 1960, Don Walsh alongside oceanographer Jacques Piccard dove into the Mariana Trench, reaching the depth of 35,814 feet in an area called Challenger Deep. On Sunday, Walsh passed away at 92. | KUAM News

How two engineers, Jacques Piccard and Lieutenant Don Walsh, became the first people to journey to the world's greatest depth, the bottom of the Mariana Trench in the Pacific Ocean in 1960. Watch more films from BBC Witness History: https://bbc.in/3oQt4to | BBC World Service