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Reports of otherworldly aircraft and creatures, alien abductions, flying saucers and unexplained bright lights have been around for hundreds of years. But what are the chances of intelligent life on another planet and could they travel through space to visit earth? Was Stephen Hawking right that we should attempt to conceal our presence? We put these questions and many of yours to Victoria University astrophysics lecturer, Dr Stephen Curran.
Photo: Dr Stephen Curran- astrophysics lecturer, Victoria University