Amateur astronomers are the heroes of this latest opus from one of the country's best-known and most prolific science writers. Ferris (Coming of Age in the Milky Way) has a special place in his heart for these nonprofessionals who gaze into space out of wonderment and end up making discoveries about comets, the moon and the planets that change our understanding of the galaxy. Ferris recounts how he, as a boy growing up in working-class Florida, was first captivated by the spectacle of the night sky. He then looks at the growing field of amateur astronomy, where new technologies have allowed neophytes to see as much of the cosmos as professionals. The book introduces readers to memorable characters like Barbara Wilson, a one-time Texas housewife who turned to astronomy after her children were grown and has since helped found the George Observatory in Houston (where a number of new asteroids have been discovered) and developed a reputation as one of the most skilled amateur observers. Ferris also takes stock of what we know today about the cosmos and writes excitedly about the discoveries yet to come. With a glossary of terms and a guide for examining the sky, this book should turn many novices on to astronomy and captivate those already fascinated by the heavens. (Sept.)