On January 23, 1960, the bathyscaphe Trieste, piloted by Jacques Piccard and Don Walsh, descended to the Challenger Deep in the Mariana Trench, reaching a record depth of approximately 35,800 feet (10,911 meters). This was the first time humans had reached the deepest known point in any of Earth's oceans, a feat of engineering and human courage.

The Trieste's descent to the Challenger Deep was a monumental achievement that captured the global imagination, symbolizing humanity's ability to reach the last unexplored frontier on Earth. This event inspired poets and writers to contemplate the extremes of the human condition, the nature of the abyss, and the insignificance of humanity in the face of the vast, dark ocean, themes explored in the works of poets like Wallace Stevens and John Ashbery.