1 of 13
Exploring the Deep
Credit: Tom Lanagan © Woods Hole Oceanographic Institution (One-Time Use Only)
Alvin, which can ferry three people into the deep sea, has made 4,664 dives in its 50-year century career. It has allowed humans to see, firsthand, the wreckage of the doomed Titanic, enabled researchers to explore the alien landscape of the deep seafloor and discover its strange inhabitants. Here’s a look at where Alvin’s been, and a project to upgrade it for future missions. Above, a swimmer, Jim McGill, dives from Alvin at sunset.