Known as "Her Deepness" by the New Yorker and the New York Times and a "Living Legend" by the Library of Congress, Sylvia Earle is an oceanographer, explorer, author and lecturer committed to research through personal exploration. She has spent more than 6,000 hours underwater on more than 50 expeditions worldwide. In 1979, Earle walked untethered on the sea floor at a lower depth than any other woman before or since. In the 1980s she started the companies Deep Ocean Engineering and Deep Ocean Technologies to design and build undersea vehicles that allowed scientists to work at previously inaccessible depths. In the early 1990s, Earle served as Chief Scientist of the National Oceanographic and Atmospheric Administration. Currently she is the explorer-in-residence at the National Geographic Society. Earle remains a dedicated advocate for the world's oceans and the creatures that live in them. Her latest endeavor, Mission Blue, seeks to ignite public support for a global network of marine protected areas and hope spots large enough to save and restore the ocean.