Pilots and observers inside an HOV can see the area ... Throughout its history, Alvin—the most active research submersible in the world and the only U.S. HOV capable of reaching such extreme ...

There was no miracle ending for the story of the submersible that disappeared with five people aboard in June 2023. USCG Rear Adm. John W. Mauger said June 22, 2023, that the families of the five ...