Catalyst returns to take you to the heart of the biggest science stories from Australia and around the world, revealing the latest understanding of how science affects our lives – from deep inside the human body to the furthest reaches of outer space. Each hour-long program delves into the very latest science, meets researchers at the cutting edge, and shows how scientific thinking is changing the lives of everyday people.
Professor Tim Flannery investigates the story behind the koala extinction headlines, meeting researchers working to understand the threats they face, and how we can avoid them.