The scientists seeking to unravel the mysteries of the universe are among the most imaginative and provocative explorers of our time. Like the geographic explorers of earlier ...

Was Christopher Columbus a visionary or an opportunist, a rapacious colonist or a Christian mystic? The Pulitzer Prize-winning author of The Mapmakers gives us a truly ...

A Pulitzer Prize-winning science writer traverses the vast physical and cognitive distances between earth and Mars, offering an informed vision of the future of Martian ...

Examines the myths and truths about dinosaurs plus the recent explosion of new theory and conjecture.

Discusses the obstacles, dangers, triumps and the new technology gained from the U.S. space missions to the moon.