The episode, titled 'Will we survive first contact?', tackles topics ranging from the creative ways scientists are honing their search for extraterrestrial life to the possibility that aliens might prove to be warriors or ruthless predators. Whether friend or foe, Freeman is convinced that extraterrestrial life does exist. Mars Attacks: Freeman has warned extraterrestrial life may be unfriendly when we first meet each other 'The question of if we're alone only occurs to you every now and then, when you look up and say, "Oh goodness, this can't be all there is,"' he said. 'If you are going to try to logically answer the question of if we're alone in the universe, the answer is, "We can't be."' Of course, before we meet any aliens, it's likely that we'll first communicate with them from a distance, as the show explores. How can we possibly tell which signals of the never-ending stream of signals from deep space are intergalactic gibberish and which are legitimate evidence of alien life? In the episode a Search for Extraterrestrial Intelligence (SETI) scientist, Dr. Laurance R. Doyle, explains how a slope of a line representing the frequency of individual signals within a stream of signals indicates whether the stream contains 'linguistic or knowledge content.' This theory could help decipher any messages that might be beamed our way by aliens, or so the argument goes. Share this article: Comments ( 16 ) The sooner people wake up to the scam by global governments the better. Extraterrestrials are