Iconic Research Submersible Alvin Turns 50

Alvin, the iconic research submersible owned by the U.S. Navy and operated by WHOI, turns 50 this year. Christened on June 5, 1964, the sub has been a workhorse for U.S. scientists, safely taking approximately 2,600 researchers on nearly 4,900 dives, and enabling countless scientific discoveries.