The 14th Edition of HORIZONS: EXPLORING THE UNIVERSE is fully updated with the latest astronomy discoveries and online resources to meet the needs of today's students. The unique and compelling stars-first organization allows students to see that the planets of our solar system are a natural byproduct of star formation. Focusing on two central questions -- What are we? and How Do We Know? -- Seeds and Backman help students understand their place in the universe and how scientists work. Important Notice: Media content referenced within the product description or the product text may not be available in the ebook version.