"Titles in this series cover the eight planets of our solar system. Images include photos of the planets and their moons, cutaway diagrams, and labeled illustrations of the solar system. The text discusses when each celestial body was discovered, the history of exploration by telescope and space probes, and plans for gathering more data in the future. Additional facts appear in image captions. Sidebars feature STEM highlights, such as the Voyager missions. 'Looking Ahead' sidebars offer details on upcoming investigations that are planned and questions that still need to be answered. The text is balanced between people's early interest in each planet and what has been learned over time, while the images show various views of the planet at a distance and in close detail. VERDICT Informative and well illustrated, this is a solid pick for librarians updating their collections.

"--School Library Journal, Series Made Simple.