Edward Larson, author, "An Empire of Ice: Scott, Shackleton, and the Heroic Age of Antarctic Science" (Yale University Press, 2011), professor, history and law, Pepperdine University, Malibu, Calif.
David Wilson, author, "The Lost Photographs of Captain Scott: Unseen Images from the Legendary Antarctic Expedition" (Little, Brown & Company, 2011), London, England
A hundred years ago, two teams were racing to the South Pole. The Norwegian team led by Roald Amundsen made it first, beating British explorer Robert Scott. But only Scott did pioneering science—and photography—along the way. Ira Flatow and guests discuss the achievements of the first Antarctic expeditions.