Explore the universe through 'Geocentric vs Heliocentric Models!' This book introduces middle schoolers to the groundbreaking theories of Galileo, Copernicus, and Kepler. It elucidates the evolution from the Earth-centered to the Sun-centered system, pivotal for the US STEM curriculum. Engage with the fascinating journey from ancient beliefs to the scientific revelations that shaped our understanding of the cosmos. It is a compelling read for educators, homeschoolers, and young astronomers ready to unlock the solar system's secrets.