With lucid prose that recalls the best-selling and beloved Cosmos, Ann Druyan takes readers on an extraordinary journey through the vast and unexplored realms of Earth and space, past and future, fact and imagination. Written and published in coordination with the sensational international television debut of a second season of National Geographic's Cosmos,Cosmos Possible Worlds travels through more than 14 billion years of cosmic evolution and into an astonishing future where probes travel by light beams to distant stars, helping us solve enduring mysteries of our origins and dream of an unimaginable time ahead. Along the way, we meet the colorful characters who push beyond the boundaries of knowledge - both the little-known but monumental visionaries of the past and the scientists whose work is shaping our future. Color photographs, art, and diagrams based on graphics created for the television series - plus a foreword by Neil deGrasse Tyson, best-selling author, wildly popular science commentator, and host of Cosmos on the National Geographic Channel - complete this highly anticipated package.