The Search for Our Planet's Twin
Michael D. Lemonick
Walker & Company, 2012 ($26)

Scientists hunting for planets outside our solar system may be just months away from discovering Earth's twin—a rocky planet like our own, spinning around a star at the right distance to sustain life. In this book, Lemonick, a science writer, spotlights “Exoplaneteer Rock Stars,” the scientists who detect planets by marking the telltale wobbles and flickers of the stars that they orbit. He also captures the fascinating lead up to the Kepler mission, which has discovered hundreds of possible worlds. —Marissa Fessenden