An Introduction to Modern Astrophysics, Second Edition has been thoroughly revised to reflect the dramatic changes and advancements in astrophysics that have occurred over the past decade. The Second Edition of this market-leading book has been updated to include the latest results from relevant fields of astrophysics and advances in our theoretical understanding of astrophysical phenomena. Designed for sophomore-level astrophysics for astronomy and physics majors,An Introduction to Mo..dern Astrophysics is now offered in two derivative versions: Introduction to Modern Stellar Astrophysics, Second Edition and Introduction to Modern Galactic Astrophysics and Cosmology, Second Edition. The core text is geared for courses in stellar structure and evolution, while the briefer books provide additional coverage of the solar system, galactic and extragalactic astronomy, dynamics, evolution, and cosmology.Fundamental physical concepts are presented early in the book to help students understand the development of ideas in later chapters.Each topic is approached in the context of major unresolved questions in astrophysics.A condensed overview of stellar astrophysics allows the reader to understand critical processes that affect galactic structure and evolution. Computer programs included with the text allow students to explore the physics of stars and galaxies. In designing a curriculum, instructors can combine core and extended chapters with the optional advanced sections so as to meet their individual goals. The text emphasizes computational physics, including computer problems and on-line programs. The book includes a selection of more than 500 problems.