"From the moons of Jupiter to the surface of Mars, our solar system is home to a multitude of wild, weird worlds. Crack open this solar system book and embark on a journey through space as you meet key figures in history, explore careers in astronomy, uncover some of the solar system's biggest mysteries, and more. Bring celestial objects into focus through more than 160 images, illustrations, and diagrams that provide a close-up look into our solar system and how it works. Did you know the Moon gets farther from Earth each year at about the same rate that your fingernails grow? Discover all sorts of awe-inspiring facts about our solar system's planets, moons, and more. Learn about important historical achievements and technological developments--including missions to different parts of the solar system--and get tips for your own stargazing sessions"-- Back cover.