Challenger Deep

American  

[chal-in-jer deep] / ˈtʃæl ɪn dʒər ˈdip /

noun

1. the deepest known portion of seafloor in the world, located in the Pacific Ocean at the southern end of the Mariana Trench at a depth of 35,840 feet (10,924 meters).

---

Etymology

Origin of Challenger Deep

First recorded in 1880–85; after the British Royal Navy survey ship H.M.S. Challenger, whose expedition of 1872–1876 made the first recordings of its depth

Example Sentences

In 2021, the duo ventured together in a submersible to the Challenger Deep and the Sirena Deep in the Mariana Trench.

From BBC • May 28, 2024

In 2020, Kelly Walsh made his own journey to the bottom of the Challenger Deep in a vessel owned and piloted by Dallas explorer Victor Vescovo.

From Seattle Times • Nov. 20, 2023

In 2012, the director and deep-sea explorer made a historic solo dive to the Challenger Deep, the deepest known point on Earth.

From Los Angeles Times • Sep. 29, 2023

According to a media report at the time, only 18 people had ever journeyed to the area, known as the Challenger Deep.

From New York Times • Jun. 22, 2023

“Only one member of this crew will make the dive,” the captain says, “and I’ve chosen you. You alone will achieve Challenger Deep and discover the riches it holds.”

From "Challenger Deep" by Neal Shusterman