Overhaul to take Alvin to greater extremes

Danik Forsman, Anthony Tarantino, Nick O’Sadcia, and Rod Catanach remove the syntactic foam from atop the sphere. (Photo by Drew Bewley © Woods Hole Oceanographic Institution)
The final phase of an overhaul that will allow the submarine to dive to 6,500 meters is underway. Read the whole story here.