Our Changing World

Astronomers use a special line-up of stars to search for planets outside our own solar system. Read more Audio

In the first part of a series about Fiordland, Alison Ballance finds out about Operation Ark. Audio

CSIRO's Ron Thresher discusses how deep-ocean corals store information about climate and ocean currents. Audio

A team of University of Otago scientists unearths exquisite fossils from an ancient volcanic crater lake. Read more Audio

Phil Bishop, at the University of Otago, discusses efforts to find a cure for a deadly frog disease. Audio

Victoria University astronomer Denis Sullivan explains what happens when a star dies. Audio

The Smithsonian curator for palaeobiology, Scott Wing, on how plants and animals changed during a warming 50 million years ago. Audio

DOC's Colin Miskelly and Graeme Taylor explain the latest update on New Zealand's threatened birds. Audio

NIWA scientists discuss adding iron to the ocean as a way of triggering algal blooms and the uptake of carbon. Audio

Astronomers Alan Gilmore and Grant Christie look back at the early days of optical astronomy in New Zealand. Audio

Landcare Research scientist Matt McGlone discusses how climate change will affect New Zealand's natural systems. Audio

Oceanographer Wallace Broecker suggests it is time to explore methods of extracting carbon dioxide from the atmosphere. Read more Audio