At the very northern edge of North America is Ellesmere Island, where the unforgiving Arctic winds tear through the tundra, dipping temperatures to 40 below zero. Running through this shifting sea of snow and ice is one of the most hardened predators on the planet, the White Wolf.
Black holes are the most enigmatic, mysterious, and powerful objects in the universe. Anything that falls into them vanishes. Astrophysicist and novelist Janna Levin takes viewers on a journey to the frontiers of black hole science and explores what can they tell us about the nature of space, time, and gravity.
66 million years ago, a seven-mile-wide asteroid collided with Earth, triggering a chain of events that coincide with the end of the dinosaurs. But experts have long debated exactly what happened when the asteroid struck and how the giant beasts met their end. Now, scientists have uncovered compelling new clues about the catastrophe.
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.