Here are the last three parts from the six-part series that explores the question, “Are we alone?” Produced by The Age, a daily newspaper in Melbourne, Australia, and hosted by science columnist Peter Spinks. He explains that this alien video series features “a panel of four scientists who consider the possibility of habitable worlds in the universe, the chances of them harbouring life, what aliens, if they exist, might be like, and how we might one day communicate with them across space and time.”
Parts 1-3 here:

Parts 4-6 here: