If Earth is round, why don't people on the other side of the world fall off? (see page 26) Is Mars red because it's embarrassed? (see page 49) If black holes are invisible, how do we know they're there? (see page 86) Using the popular style that has won millions of readers, best-selling...
Filled with quotes, fact-filled sidebars, and fun pop quizzes, Don't Know Much About Space reveals who first charted the stars, why people believed that the Earth was the center of the universe, and how astronauts may lead us to become pioneers on other planets.