July 2, 2004: Hour One: Mission to Saturn / Alzheimer's Update
July 2, 2004: Hour Two: Mad Cow Disease Update / Eric Kandel
July 9, 2004: Hour One: NIH Confict of Interest/ Monkey Brains and Prostethics
July 9, 2004: Hour Two: Mount Graham Observatory Fire / Smoke and Germination / Lynx Ecology
July 16, 2004: Hour One: HIV/AIDS Update / Gleevec Update
July 16, 2004: Hour Two: Fish Stories
July 23, 2004: Hour One: Space Update: Planetary Exploration / McNeil's Nebula
July 23, 2004: Hour Two: Epigenetics / Ode to the Lab Mouse
July 30, 2004: Hour One: Sea Monsters / Stem Cells / Food Technology
July 30, 2004: Hour Two: Richard Panek, "The Invisible Century" / Einstein vs Bohr