A PBS documentary concerning Jared Diamond's theory on why there is such disparity between those who have advanced technology and those who still...

Applying the laws of life on Earth to the rest of the galaxy, this series blends science fact and fiction to imagine alien life on other planets.

Storm chasers, survivors and first responders recount their harrowing experiences with volcanoes, tornadoes, hurricanes and earthquakes.

Using the latest in archaeology, anthropology and genetics, this series tells the story of where the modern world began. Incorporating studies of...