Dr. Robert Ballard explores the haunting wreckage of the Titanic strewn over 1000 acres of seabed. Upcoming Events at National Geographic Live! http://event...
Titanic: Ballard's Secret Mission
The Titanic Discovery: Professor Robert Ballard
ghosts of the black sea
Robert Ballard on Global Warming: It's too late
Titanic The Nightmare and the Dream
Robert Ballard: Exploring the ocean's hidden worlds
Secrets Of The Dead - Quest For Noah's Flood