On more than 120 deep-sea expeditions, Robert Ballard has made many major natural discoveries, such as the deep-sea vents. Oh, and he found the Titanic.

Why you should listen

From an early age, Robert Ballard was intrigued by the deep. He's perhaps best-known for his work in underwater archaeology; in addition to Titanic, he has found the wrecks of the Bismarck, the USS Yorktown, the nuclear sub Thresher (on a top-secret mission for the Navy -- for which the Titanic was his cover story) and John F. Kennedy's PT-109.

His contributions to our scientific knowledge of the ocean is just as awe-inspiring. He was in the first team of humans to view the deep-sea vents, and to understand how life can not only survive but thrive in these deep black waters, under extreme pressure and at extreme temperature.

He's also a powerful storyteller and a passionate scientific educator. He founded the Institute for Exploration and has pioneered distance learning in classrooms around the world. Through his JASON Project, 1.7 million students a year join scientists virtually as they experience the thrill of exploration and discovery.

What others say

“Mr. Ballard has long been blessed with the special luck of a successful explorer as well as the special knowledge of a leading scientist.” — New York Times