Assistant Associate Administrator for the International Space Station, NASA
Mark Uhran is NASA's Assistant Associate Administrator for the International Space Station. He shares his excitement as the Station transitions from assembly to full-time science. Emily Lakdawalla takes us to Venus, Mars and the world of science music for kids. Bill Nye reports from an international space conference in Prague. Bruce Betts and Mat Kaplan are wowed by the first listener-created Random Space Fact" rendition as they explore the night sky and begin yet another space trivia contest."