Book excerpt: Nine planets -- More than seventy moons -- And hundreds of stellar facts about the Solar System! True or False: 1. Venus is the coolest planet in our solar system. 2. Halley's comet returns every seventy-six years. 3. The universe is 15 to 20 billion years old. Blast Off and discover the secrets of outer space! Have you ever wondered why our galaxy is called "the Milky Way," or if you could really catch a shooting star? Here's your chance to find out without ever leaving Earth. Best-selling author Kenneth C. Davis packs fascinating facts and riddles into his signature question-and-answer format. He makes exploring the solar system an out-of-this-world experience!