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Legendary Exploration Sub Alvin to be Retired

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NPR's Melissa Block talks with Dan Fornari of the Woods Hole Oceanographic Institution about plans to retire the famed three-person submarine Alvin after 40 years of exploration. The National Science Foundation on Friday announced a project to build a new "human-occupied vehicle" to take scientific deep-sea dives. Fornari describes what it's like to take a dive miles deep in Alvin, and how the new submersible slated for 2008 will increase scientists' capabilities.



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