Famous Alvin Submersible Upgraded to Dive More Than 20,000 Feet Under the Sea
The Alvin submersible is now capable of diving event to 21,325 feet ( 6,500 metre ) , putting 99 % of the ocean flooring within its stretch . Alvin ’s upgrade has been in the work forover four yr , with its last iterationcompletedin 2021 . The old hand submersible can now plunk nearly 6,700 groundwork ( 2,000 metre ) deeper than before , enable scientists to explore the sea ’s most abyssal break ....