Examining the work of scientists who are studying active volcanoes in an attempt to learn how likely they are to erupt, when eruptions might happen and how deadly they could be.
NOVA meets a new breed of experts who are approaching "cold case" art mysteries as if they were crime scenes, determined to discover "who committed the art," and follows art sleuths as they deploy new techniques to combat the multi-billion dollar criminal market in stolen and fraudulent art.
In a race against developers in the Rocky Mountains, archaeologists uncover a unique fossil site packed with astonishingly well-preserved bones of mammoths, mastodons, and other giant extinct beasts. The discovery opens a highly focused window on the vanished world of the Ice Age in North America.
Where do nature's building blocks, called the elements, come from? They're the hidden ingredients of everything in our world, from the carbon in our bodies to the metals in our smartphones. Watch as David Pogue unlocks their secrets.
Nova reviews what scientists have learned in recent years about the sun's behavior and how it works. Most significantly, astronomers are at last beginning to understand the the solar phenomenon that impact our civilization; solar flares and coronal mass ejections.
The Vikings were the most ferocious warriors of the Middle Ages. Especially fearsome were the select few who wielded a formidable weapon: a light, razor sharp, virtually indestructible sword with its maker's name, ULFBERHT, inlaid along the blade.
An examination of modern forensic science. Of the more than 200 inmates exonerated by DNA testing since 2000, more than half were initially found guilty in part due to invalid and/or improperly utilized forensic science.
