Descripcion: Using 3-D printing and the aesthetics of sculpture and painting, artist Gary Staab creates an exact replica of Ötzi, a 5,000-year-old mummified human.
NOVA: Treasures of the Earth
Descripcion: Its surface is only part of Earth's story, as this show illustrates by delving beneath the visible to uncover Earth's hidden power, bounty and beauty.
Descripcion: In Africa, the Yukon and Yellowstone National Park, efforts are underway to provide safe passage between habitats for roaming or migrating wildlife.
Can Alzheimer;s Be Stopped?
Descripcion: As medical science scrambles to unlock the mystery of Alzheimer's disease, patients enlist in clinical trials to find a treatment, or even a cure.