Humans are naturally curious. That curiosity has drawn us to new lands and it has prompted us to devise new ways to explore our planet and beyond. Over the millennia, we have invented new devices—x-ray machines, telescopes, and submarines—that let us look inward, outward, and underneath. In Greatest Inventions With Bill Nye: Exploration From Sea to Space, Bill Nye recounts the creation of technologies that let us see our world and ourselves better.