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. Praise for Comet "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

A picture book touching on the impact of moving away from home and how this effects our relationships and sense of belonging, but also how it can open us up to new experiences and allow us to cherish the old ones. "A lovely story to share with anyone who is struggling to find comfort in a new situation." —STARRED REVIEW School Library Journal When Nyla is forced to leave her home in the country to start life again in the city, all she can think about is everything she misses from before. So when a comet comes crashing through the city streets and starts growing into a forest, Nyla can’t resist a chance to head somewhere that feels closer to what she had before ... but what starts as an escape could be just the thing to make her finally feel at home.

Fourteen-year-old Alan Broussard is swept up in his science teacher father's community-wide comet-watching activities, which illuminate for the young teen his father's inadequacies, his mother's unhappiness, and his own loss of innocence.

The Comet (1920) is a science fiction story by W. E. B. Du Bois. Written while the author was using his role at The Crisis, the official magazine of the NAACP, to publish emerging black artists of the Harlem Renaissance, The Comet is a pioneering work of speculative fiction which imagines a catastrophic event not only decimating New York City, but bringing an abrupt end to white supremacy. “How silent the street was! Not a soul was stirring, and yet it was high-noon—Wall Street? Broadway? He glanced almost wildly up and down, then across the street, and as he looked, a sickening horror froze in his limbs.” Sent to the vault to retrieve some old records, bank messenger Jim Davis emerges to find a city descended into chaos. A comet has passed overhead, spewing toxic fumes into the atmosphere. All of lower Manhattan seems frozen in time. It takes him a few moments to see the bodies, piled into doorways and strewn about the eerily quiet streets. When he comes to his senses, he finds a wealthy woman asking for help. Soon, it becomes clear that they could very well be the last living people in the planet, that the fate of civilization depends on their ability to come together, not as black and white, but as two human beings. But how far will this acknowledgment take them? With a beautifully designed cover and professionally typeset manuscript, this edition of W. E. B. Du Bois’ The Comet is a classic work of African American literature reimagined for modern readers.

In the gripping start to this young adult science fiction adventure series by popular Colorado radio host Dom Testa, the teenage crew of the starship Galahad must find a new home for humanity among the stars--if they fail, it will be the end of the human race.... When the tail of the comet Bhaktul flicks through the Earth's atmosphere, deadly particles are left in its wake. Suddenly, mankind is confronted with a virus that devastates the adult population. Only those under the age of eighteen seem to be immune. Desperate to save humanity, a renowned scientist proposes a bold plan: to create a ship that will carry a crew of 251 teenagers to a home in a distant solar system. Two years later, the Galahad and its crew—none over the age of sixteen—is launched. Two years of training have prepared the crew for the challenges of space travel. But soon after departing Earth, they discover that a saboteur is hiding on the Galahad! Faced with escalating acts of vandalism and terrorized by threatening messages, sixteen-year-old Triana Martell and her council soon realize that the stowaway will do anything to ensure that the Galahad never reaches its destination. The teens must find a way to neutralize their enemy. For if their mission fails, it will mean the end of the human race.... At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

David Levy brings these "ghostly apparitions" to life. With fascinating scenarios both real and imagined, he shows how comets have wreaked their special havoc on Earth and other planets. Beginning with ground zero as comets take form, we track the paths their icy, rocky masses take around our universe and investigate the enormous potential that future comets have to directly affect the way we live on this planet and what we might find as we travel to other planets. In this extraordinary volume, David Levy shines his expert light on a subject that has long captivated our imaginations and fears, and demonstrates the need for our continued and rapt attention.