Astronomy

Using a planets-first approach, this newly revised Second Edition shows students their place in the universe, not just their location, but their role as planet dwellers in an evolving universe. The text illustrates how science works and how scientists depend on evidence to test hypotheses and build confidence in theories. Through a discussion of evidence and hypothesis, a conceptual framework for understanding the logic of astronomical knowledge is provided. Students are shown how the universe can be described by a small set of physical laws, and how they can comprehend their place in the universe by understanding these laws, and not through memorization of facts. The book covers the history of astronomy, elementary physics concepts, the Solar System, origins of the Universe, and stars and galaxies.