Synopsis
Australia has become a major centre for radio astronomy. The 210-foot dish at Parkes, New South Wales has been in continuous operation since 1961 and has provided work of fundamental importance. The "Australia Telescope", a network of all the main observatories, now covers a wide area of the continent. In this programme, Patrick Moore goes to the Australian radio observatories and talks to the scientists who have made Australia so important in this branch of astronomy.