May 7, 2004: Hour One: State of US Science / State of the Oceans
May 7, 2004: Hour Two: Science of Horse Racing
May 14, 2004: Hour One: Electronic Voting Update / Targeted Obesity Treatment / Extinction Crater
May 14, 2004: Hour Two: Deep-Sea Asphalt Life / The Spring Bug Show
May 21, 2004: Hour One: Funding for Anti-Terror Drugs / Obesity Update / The Developing Brain
May 21, 2004: Hour Two: Dark Energy Update / Edward Larson's 'Evolution'
May 28, 2004: Hour One: Acoustics Update
May 28, 2004: Hour Two: Aspirin and Masculinization / 'The Day After Tomorrow' and Global Climate Change