"Planet Earth moves through the vast reaches of the space like a ship sails through the waves at sea. Like the passengers on a ship, all the humans, plants and animals of the world are traveling together, shipmates on this huge spaceship we call Earth." So begins the newest book from Seymour Simon, which covers our blue planet's geography, climate, seasons, atmosphere, population, wildlife and more in this fascinating volume, the first in a new series. A StarWalk Kids Digital Original Book.Kids Digital Original Book.