Our Changing World pays tribute to Alan MacDiarmid, who died on February 7.

Dacia Herbulock reports from Stardate, an annual astronomy gathering in Hawke's Bay.

Veronika Meduna talks to Jim Renwick and Dave Lowe, both climate scientists at NIWA, about what the recent report by the Intergovernmental Panel on Climate Change means for the New Zealand region.


Dean Williams discusses Japan's scientific whaling programme with New Zealand's scientific advisor to the International Whaling Commission, Mike Donohue, and Phil Clapham from the US National Marine Mammal Laboratory in Seattle.


The Liggins Institute's associate director Peter Lobie explains the role of a growth hormone in the development and spread of breast cancer.