"Did you know that Mars is twice the size of Earth's moon? Or that it is home to the Valles Marineris--the largest canyon in our solar system? Blast off and explore the surface of the fourth planet from the Sun with Discovering Mars. This book is a complete scientific guide to Mars, including information on geography, atmosphere, unique landscape features, and more. Discover Mars's moons Phobos and Deimos, learn all about unique polar spiders, and investigate past, present, and future life on Mars. Incredible illustrations and NASA imagery of Mars's surface, craters, and volcanoes bring outer space right to your fingertips and let you explore the red planet like never before. Learn all about past missions to Mars, and take a sneak peek into future projects from NASA and beyond." -- Amazon.