Amazon.com description: Product Description: Explore the solar system, learn about life and conditions on other planets, and analyze examples of UFO sightings in this dynamic book. Totally Aliens probes the outer limits of the universe and gives kids a close encounter with "extraterrestrial beings." Kids are transported into spaceships descending into the atmosphere of three types of planets, high gravity, low gravity, and earth-like gravity, and create space creatures using mix-and-match parts included in the book. Totally Aliens lets children use their imagination to create five space creatures designed to live on four different planets or they can create their own. This OO includes 40 different sturdy plastic pieces to mix and match parts, as well as a 32-page book which discusses what scientists know about life in the universe.