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The Boston Globe

Business

Woods Hole deep sea sub gets makeover

An overhaul of the storied Woods Hole-based sub Alvin will let scientists descend four miles below sea level to explore the earth’s final frontier

Launched during the Space Age and overshadowed by missions to the moon, the deep-diving submersible known as Alvin has nonetheless racked up an impressive list of explorations over more than 40 years of plying the world’s oceans.

And now, after a year-long retrofit, Alvin is ready to tackle what many scientists consider the last frontier on earth — the deepest parts of the ocean floor — and transmit its findings back in broadcast-quality pictures and video.

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