Christmas at the Moon; and Instant Egghead Guide: The Mind

Scientific American editor Michael Battaglia discusses the online In-Depth-Report on Apollo 8, which orbited the moon 40 years ago this week. And author Emily Anthes talks about her new book, Instant Egghead Guide: The Mind . Plus, we'll test your knowledge about some recent science in the news. Web sites related to this episode include;;

Popout Listen on the new Podbay