NOVA follows a team of volcano sleuths as they embark on a worldwide hunt for an elusive volcanic mega-eruption that plunged medieval Earth into a deep freeze. They look for the signature of a volcanic eruption big enough to have blasted a huge cloud of ash and sulfuric acid into the atmosphere, which chilled the entire planet. Across the globe, it turned summer into winter.
The community of Hopkinsville came together to support thousands coming to view 2017's Great American Eclipse; learn more about the science courtesy of the Franklin drive-in and the scientists and eclipse enthusiasts who came to Simpson County to view it; Doug and the Kentucky Horse Park celebrate the birthday of Man o'War as 2017 is the 100th anniversary of his birth; and before European settlement, native peoples made extensive use of Mammoth Cave.
Once upon a time, knighthood was serious business, and for countless medieval fighters, their armor was what stood between life and death. NOVA challenged a blacksmith and master armorer to recreate parts of an elite armor. We trace their journey as they rediscover centuries-old metalworking secrets, then put their new armor to the ultimate test against a period musket.
Connections with Renee Shaw
Renee's guest is U.S. Department of Transportation Secretary Elaine Chao. Sec. Chao discusses topics in the transportation sector, including the prospect of self-driving car technology, the agency's involvement in the disaster relief effort for Hurricanes Harvey and Irma, and other issues. The wide-ranging interview also touches on Sec. Chao's views on immigration and the relationship between her husband, Sen. Majority Leader Mitch McConnell (R-KY) and President Donald Trump.