RT @oceanexplorer: 60 years young & better than ever! Today we celebrate one of our favorite partners in exploration, #Alvin, one the deepest-diving human-occupied submersibles in the world. @oceanexplorer looks forward (& downward) to all that lies ahead.

Happy birthday Alvin!

#Alvin60 @WHOI https://t.co/a8a0FKUE8j

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