Space holds a myriad of mysteries, but organizations such as NASA and the ESA have discovered numerous captivating facts about the universe, many of which are presented in this text. Besides information about our solar system, stars, and black holes, readers will be interested to know that a comet's tail is always pointing away from the sun and astounded to learn that probes are speeding though space with information that could lead alien life to Earth. These and 98 other facts as well as diagrams, quizzes, and photographs will delight future astronauts and astronomers.