Lisa Randall is the Frank B. Baird, Jr. Professor of Science at Harvard University. Her new book is "Dark Matter and the Dinosaurs: The Astounding Interconnectedness of the Universe." She's also the author of "Warped Passages: Unraveling the Mysteries of the Universe’s Hidden Dimensions" and "Knocking on Heaven’s Door: How Physics and Scientific Thinking Illuminate the Universe and the Modern World." This interview was edited and produced with music and other features in the On Being episode "Lisa Randall — Dark Matter and the Astounding Interconnectedness of Everything." Find more at onbeing.org.