With Astronomy Today, Eighth Edition, trusted authors Eric Chaisson and Steve McMillan communicate their excitement about astronomy, delivering current and thorough science with insightful pedagogy. The text emphasizes critical thinking and visualization, and it focuses on the process of scientific discovery, teaching students “how we know what we know.” Alternate Versions Astronomy Today, Volume 1: The Solar System, Eighth Edition—Focuses primarily on planetary coverage for a 1-term course. Includes Chapters 1–16, 28. Astronomy Today, Volume 2: Stars and Galaxies, Eighth Edition—Focuses primarily on stars and stellar evolution for a 1-term course. Includes Chapters 1–5 and 16–28.