For one-semester Introduction to Astronomy courses. With Astronomy: A Beginner's Guide, Sixth Edition, trusted authors Eric Chaisson and Steve McMillan communicate their excitement about astronomy and awaken students to the universe around them. Thoroughly updated, the revised edition focuses on the process of scientific discovery and scientific method, making "how we know what we know" a more integral part of the text with attention to clearly and concisely presenting scientific terms to the non-science student. The authors incorporate three themes in this briefer version of their two textbooks; process of science, the size and scale of the universe as well as the evolution of the universe. A Beginner's Guide emphasizes critical thinking and visualization, and is now available with a custom tailored leading-edge technology program. The Sixth Edition features an even greater focus on the process of science, MasteringAstronomy, and a dedicated myeBook.