Based on their best-selling astronomy textbook, authors Mike Seeds, Dana Backman, and Michele Montgomery present HORIZONS HYBRID: EXPLORING THE UNIVERSE, Thirteenth Edition, to help you understand your place in the universe--not just your location in space but your role in the unfolding history of the physical universe. To achieve this goal, they focus on two central questions: "What Are We?" which highlights your place as a planet dweller in an evolving universe, guiding you to better understand where we came from and how we formed; and "How Do We Know?" which provides insights into how science works and how the process of science can teach us more about what we are.