Routinely going through daily life, people may be inured to the fact that Earth takes up only a small fraction of a solar system, let alone the universe. Still, the planet we call home is unique for a number of reasons. The more we can learn about Earth and its Moon—the two bodies in the solar system of which the most has been discovered to date—the more likely scientists are to uncover truths about the universe as a whole. The properties, motions, and cycles that characterize the Earth and Moon are the subjects of this mesmerizing volume, supported with details, sidebars, and labeled illustrations that any earthling would love.