December 1, 2006: Hour One: Spy Poisoning / Climate Change on Capitol Hill
December 1, 2006: Hour Two: From Lucy to Language / Patents and Scientific Progress
December 8, 2006: Hour One: Mars Water Update / Inflammation and Health
December 8, 2006: Hour Two: 2006 Science Book Picks / Winter Skygazing
December 15, 2006: Hour One: Nanotech Risks and Regulation / Food Safety
December 15, 2006: Hour Two: Visualizing Science / Creativity / Pollock, Painting, and Fractals
December 22, 2006: Hour One: Stardust Comet Mission / Brain News / Malaria Vaccine
December 22, 2006: Hour Two: Ann Druyan about Carl Sagan / Smell
December 29, 2006: Hour One: 2006 Science Year in Review
December 29, 2006: Hour Two: Annual Bird Show/ Pigeons