January 7, 2005: Hour One: Stem Cells and Parkinson's / Deep Impact / Heart Disease Protein January 7, 2005: Hour Two: Michael Crichton's 'State of Fear' / Environmental Impact of the Tsunami January 14, 2005: Hour One: Breast Cancer Gene / HIV-AIDS Update January 14, 2005: Hour Two: Huygens Probe / Hydrogen Cars January 21, 2005: Hour One: Meteorite on Mars / Science and Religion Part 1: Physical Sciences January 21, 2005: Hour Two: Science and Religion Part 2: Biological Sciences / Huygens Update January 28, 2005: Hour One: Women In Science January 28, 2005: Hour Two: Avian Flu / Science Dictionary