This book is jointly compiled by several astronomers, aerospace experts, and famous science writers, including Ouyang Ziyuan, academician of the Chinese Academy of Sciences. It includes four titles: The Vast Universe, A Glimpse of the Solar System, Flying into Space, and China Aerospace. This book features astronomical and space knowledge in the theme-based form in addition to the integration of pictures and texts, coupled with multimedia and AR technology. Through scientific and accurate expression, vivid plus exciting layout, along with a novel audio-visual reading experience, the book unfolds an omni-directional knowledge of space for young readers. It demonstrates aerospace technology's development process and achievements in China.