Conversation

"Alvin, the world’s longest-operating and most productive human-occupied deep-sea submersible, with more than 5,000 dives completed over 60 years of operation ... recently underwent a significant upgrade, allowing it to reach depths of up to 6,500 meters—surpassing its previous limit of 4,500 meters." - Eos #geology #oceanography

https://eos.org/science-updates/an-upgraded-alvin-puts-new-ocean-depths-within-reach