Neil Tyson dives into the science of cosmetics. Discover the technological and chemical foundation for the industry, as well as how genes may be the future canvas for cosmetics. With guest chemists Steve Herman and Art Georgalas. Co-host Lynne Koplitz.
Paleontologist Peter Ward explains how life’s tendency toward self-destruction has led to massive extinction events in Earth’s history. What does the past — and the smell of rotten eggs — have to teach us about the fate of humanity?