The Lost Worlds of Planet Earth Ortelius hypothesized the idea that land masses may have been connected in the past, Alfred Wegener who hypothesized the idea of a super-continent Pangaea and continental drift despite the prevailing idea of flooded land-bridges at the time, and Bruce C. Heezen and Marie Tharp who discovered the Mid-Atlantic Ridge that supported the theory of plate tectonics. Tyson describes how the landmasses of the earth lay atop the mantle, which moves due to the motion and heat of the earth's outer and inner core. Tyson moves on to explain the asteroid impact that initiated the Cretaceous–Paleogene extinction event, leaving small mammals
The Legend That Was Earth Chryse begins. As the story begins, one can see the beginnings of a dystopia. Hyadeans are beginning to have more and more influence in Terran governmental and military affairs. Most Western countries have formed an alliance called the Global Economic Coalition, which the Hyadeans direct because of their stronger economic power. The secret mission of the Hyadean government is to use Earth as a colony, like they have done with other planets. The United States is a bit of a police state as well. Identification is required for simple things such as crossing a state border, and the government has