Jeff Orlowski

Explores the dangerous human impact of social networking; tech experts sound the alarm on their own creations.

Follow National Geographic photographer James Balog across the Arctic as he deploys time-lapse cameras designed for one purpose: to capture a multi-year record of the world's changing glaciers.

Coral reefs around the world are vanishing at an unprecedented rate. A team of divers, photographers and scientists set out on a thrilling ocean adventure to discover why and to reveal the underwater mystery to the world.

Behind the gates of a palm tree-lined fantasyland, four residents of America's largest retirement community, The Villages, FL, strive to find solace and meaning.