In her own singularly beautiful style, Newbery Medal winner Sharon Creech intricately weaves together two tales, one funny, one bittersweet, to create a heartwa

Astronomy, politics, and romance join forces in this novel from the writer John Updike has called "one of the most interesting American novelists at work." It's

An astonishing exploration of planet formation and the origins of life by one of the world’s most innovative planetary geologists. In 1959, the Soviet probe L

"What if?" questions stimulate people to think in new ways, to refresh old ideas, and to make new discoveries. In What If the Earth Had Two Moons, Neil Comins l

Previously published by Del Rey Books as two separate novels--"Inherit the Stars" and "The Gentle Giants of Ganymede"--these two stories, now available in one v