Shackletons ship Endurance discovered after more than 100 years at the bottom of the sea
William Brangham: She hasn't been seen in over 100 years. This is the Endurance, resting nearly 10,000 feet down in the dark, freezing waters at the bottom of Antarctica's Weddell Sea, just a few sea anemones and other creatures bearing witness to perhaps the final chapter in one of the world's great stories of heroism