Our Changing World for Thursday 20 April 2006

9:46 PM.Louise Wallace visits Waitakere to report from the Just for the Health of It! Health and Lifestyle Expo. Audio

9:35 PM.A new energy advisory service for residents in Waitakere city, where an auditor assesses their energy consumption. Audio

9:20 PM.Veronika Meduna talks to astrophysicist Matthew Bate about the birth of stars and planets. Audio

9:06 PM.Harold Dibble, a palaeolithic archaeologist, talks about Neanderthals and their Stone Age tools. Audio