Science & Technology

Our ancient human ancestors once lived only in Africa in tiny bands of a few thousand hunter-gatherers. Then we moved out of our African cradle, spreading rapidly to every ...

Yosemite Valley is a land forged in wildfire and sculpted by water; the delicate balance of these two elements is essential to the creatures and trees that call this land ...

Host Henry Louis Gates, Jr. explores the family stories of filmmaker Michael Moore and actors Laura Linney and Chloë Sevigny—three people whose distant ancestors overcame ...

Take a closer look at the life and legend of Nero, the infamous Roman emperor, as a forensic profiler attempts to find out what history may have gotten wrong about his alleged ...

In the shadow of Italy’s Vesuvius, a lesser-known volcano rumbles: Campi Flegrei. If it erupts, millions of lives could be at risk. Scientists explore its unique geology and ...

Uncover the variety of activity, both human and natural, that occurs on the slopes of active volcanoes. Take a terrifying descent into the crater of one of the world’s most ...

Henry Louis Gates, Jr. shows comedians Seth Meyers, Tig Notaro and Sarah Silverman that their family trees are filled with people whose struggles laid the groundwork for their ...

New technologies are making rockets cheaper and more powerful than ever before. As companies like SpaceX and Virgin Galactic make space more accessible, and NASA returns to ...

Experience the natural world through the eyes of the Vikings. From the killer whales of the North Sea to the volcanic mounts of Iceland, see the deep history and cultural ...