Australia unveils telescope to detect distant galaxies
5 October 2012 Last updated at 10:30 BST
Australia has launched one of the world's largest radio telescopes tasked with surveying outer space and probing the origins of stars and galaxies.
The Australian Square Kilometre Array Pathfinder (Askap) in Western Australia's outback has 36 antennas with a diameter of 12m (40ft) each.
The A$152m ($155m, £96m) telescope is expected to capture radio images, starting from Friday.
Duncan Kennedy reports from Sydney.