From the churning interior to the oceans and life on land, view the world as it's never been seen before. Cutting-edge tools offer an inside look at Earth as it breathes, heals and flexes its muscles.

Discovery Channel documentary

Historians, biographers and personal friends of Pulitzer Prize-winning author Margaret Mitchell reveal a complex woman who experienced profound identity shifts during her life and struggled with the two great issues of her day: the changing role of women and the liberation of African Americans.