June 4, 2004: Hour One: News Roundup: Traffic In Radiological Materials / Entangled Quantum Computers / Transit of Venus
June 4, 2004: Hour Two: David Lindley's 'Degrees Kelvin'
June 11, 2004: Hour One: News Roundup: Dino News / Ancient Mammals / The Sleepy Brain
June 11, 2004: Hour Two: Jeffrey Sachs / Airline Security and Biometrics
June 18, 2004: Hour One: Seattle Remote: Science and Science Fiction
June 18, 2004: Hour Two: Seattle Remote: Mars -- Science Fact and Fiction
June 25, 2004: Hour One: Future of Space Flight
June 25, 2004: Hour Two: Stardust Mission / Mental Illness in Children