Glass Universe w/ Dava Sobel

Cara is joined by Dava Sobel, author of "The Glass Universe: How the Ladies of the Harvard Observatory Took the Measure of the Stars." They discuss the scientific contributions made by these pioneering women at the turn of the 20th century, and how their methods and discoveries continue to benefit astronomers today. Also discussed: Dava's inspiration for writing this story, and the lasting lessons its pages hold. Follow Dava @DavaSobel.