Cosmic dragons

A fascinating book that addresses the most fundamental questions there can be. How did life on Earth originate? Is life unique to Earth? If not, how did life begin? Where did it come from? What existed before the beginning of life? Or was there indeed a beginning to the Cosmos at all? And how might life on Earth end? Professor Chandra Wickramasinghe, in this account of his pioneering work as an astronomer, sees Cosmic Dragons or comets with their magnificent tails of cosmic dust as being both that life giving force and equally destroyers of life.