Table of Contents
Genetic traits left by our ancestors are leading scientists back across time in an epic discovery of human migration.
High Cost of Cheap Coal
Coal is plentiful—and polluting. Can an energy-hungry world afford to wait for this fuel to clean up?
Battle of Hampton Roads
The currents of Civil War history and technology collide in Hampton, Virginia.
Visions of Earth
Each month, National Geographic features breathtaking photographs in Visions of Earth.