WHAT ARE THESE GRACEFUL VISITORS TO OUR SKIES? WE NOW KNOW THAT THEY BRING BOTH LIFE AND DEATH AND TEACH US ABOUT OUR ORIGINS. Comet begins with a breathtaking journey through space astride a comet. Pulitzer Prize-winning astronomer Carl Sagan, author of Cosmos and Contact, and writer Ann Druyan explore the origin, nature, and future of comets, and the exotic myths and portents attached to them. The authors show how comets have spurred some of the great discoveries in the history of science and raise intriguing questions about these brilliant visitors from the interstellar dark. Were the fates of the dinosaurs and the origins of humans tied to the wanderings of a comet? Are comets the building blocks from which worlds are formed? Lavishly illustrated with photographs and specially commissioned full-color paintings, Comet is an enthralling adventure, indispensable for anyone who has ever gazed up at the heavens and wondered why. "SIMPLY THE BEST." *The Times of London "FASCINATING, EVOCATIVE, INSPIRING." *The Washington Post "COMET HUMANIZES SCIENCE. A BEAUTIFUL, INTERESTING BOOK." *United Press International "MASTERFUL . . . SCIENCE, POETRY, AND IMAGINATION." *The Atlanta Journal & Constitution

Spaceflight historian Amy Shira Teitel tells the riveting story of the female pilots who each dreamed of being the first American woman in space. When the space age dawned in the late 1950s, Jackie Cochran held more propeller and jet flying records than any pilot of the twentieth century-man or woman. She had led the Women's Auxiliary Service Pilots during the Second World War, was the first woman to break the sound barrier, ran her own luxury cosmetics company, and counted multiple presidents among her personal friends. She was more qualified than any woman in the world to make the leap from atmosphere to orbit. Yet it was Jerrie Cobb, twenty-five years Jackie's junior and a record-holding pilot in her own right, who finagled her way into taking the same medical tests as the Mercury astronauts. The prospect of flying in space quickly became her obsession. While the American and international media spun the shocking story of a "woman astronaut" program, Jackie and Jerrie struggled to gain control of the narrative, each hoping to turn the rumored program into their own ideal reality-an issue that ultimately went all the way to Congress. This dual biography of audacious trailblazers Jackie Cochran and Jerrie Cobb presents these fascinating and fearless women in all their glory and grit, using their stories as guides through the shifting social, political, and technical landscape of the time.