He’s a modern-day Captain Nemo - the person responsible for much of what we’ve learned about the Earth’s oceans over the past sixty years. He’s best-known as the person who discovered the Titanic and other historic shipwrecks. But his contributions to science and his dedication to exploration are what he’s proudest of. In the 1970’s Bob Ballard was one of the first people to explore the bottom of the sea in a submersible, and he was the first to begin mapping its geography. He later helped discover the existence of hydro-thermal vents, holes in the ocean floor where the water circulates through the planet’s interior. Over the decades he has pioneered new and better ways for oceanographers to explore and document - in manned vehicles and robotic ones. At 79, he continues to innovate and to educate new generations of ocean scientists. On this episode we’ll also hear from one of his proteges, Allison Fundis, who is making her own significant contributions to our understanding of the oceans that sustain us.