Research shows that active learning supports deeper, long-term understanding. The Third Edition text and media package gives students more opportunities to interact with astronomy--both in real life and online. The new edition provides all the resources you need to make it easy to incorporate active learning into the classroom.

"Author Stacy Palen knows that introductory astronomy may be the only science course your students take in college. Understanding Our Universe, Fourth Edition motivates students to understand the concepts and value science by experiencing astronomy before, during, and after class. By expanding the active learning pedagogy, Stacy strives to help you help students feel more comfortable and confident with the content and evaluating and responding to science in the media"--

The most innovative resources for the most important course

Intended for undergraduate non-science majors, satisfying a general education requirement or seeking an elective in natural science, this is a physics text, but with the emphasis on topics and applications in astronomy. The perspective is thus different from most undergraduate astronomy courses: rather than discussing what is known about the heavens, this text develops the principles of physics so as to illuminate what we see in the heavens. The fundamental principles governing the behaviour of matter and energy are thus used to study the solar system, the structure and evolution of stars, and the early universe. The first part of the book develops Newtonian mechanics towards an understanding of celestial mechanics, while chapters on electromagnetism and elementary quantum theory lay the foundation of the modern theory of the structure of matter and the role of radiation in the constitution of stars. Kinetic theory and nuclear physics provide the basis for a discussion of stellar structure and evolution, and an examination of red shifts and other observational data provide a basis for discussions of cosmology and cosmogony.

Is there an objective world, or is everything relative? Do matter, time and space change, or do they remain constant everywhere in the universe? Is there always a relationship between cause and effect, or do some things "just happen?" Many of our basic ideas about the world have been shaped by science—but seldom are such discoveries accepted easily or willingly. Here are seven of the most important ideas in physics—ideas that shattered the assumptions of dogmatists, philosophers and scientists—explained simply and elegantly. And you don’t need a background in mathematics or science to enjoy this fascinating book. Seven Ideas That Shook the Universe explores the history of seven important themes in physics: Copernican astronomy, Newtonian mechanics, energy and entropy, relativity, quantum theory, and conservation principles and symmetries. Together these discoveries form the foundation of our understanding of the physical world. Nathan Spielberg and Bryon Anderson explain each concept in a simple, straightforward narrative style, considering each in the context of its times and assessing its impact on the way we think about time, space, matter, even existence itself. For the science lover and the intellectually curious, Seven Ideas That Shook the Universe brings the drama of scientific discovery to vivid life.

Understanding the Universe: The Physics of the Cosmos from Quasars to Quarks explores how all areas of physics, from the very smallest scales to the very largest, come together to form our current understanding of the Universe. It takes readers on a fascinating journey, from the Big Bang and how the Universe has evolved, to how it appears now, and the possibilities for how it will continue to evolve in the future. It also explores the latest exciting developments in the area and how they impact our understanding of the Universe, such as quantum chromodynamics, black holes, dark energy, and gravitational waves. Equally importantly, it explains how we have come to know all of this about the Universe and details the limitations of our current understanding. This book is accessible to all introductory undergraduate students interested in the physical sciences. It prioritises a non-mathematical approach so it can be understood by all students, with only two algebraic equations in the book and any numerical calculations shown are limited to simple arithmetic. Key Features: Combines current understanding of quantum physics and cosmology, and includes the latest exciting developments from the field. Provides an accessible introduction to the topic, focusing on a non-mathematical presentation. Presents a comprehensive narrative on the subject and a coherent story.