Are we really alone in our galaxy? If there are intelligent civilizations out there, where are they? Are we not listening properly? Join Carol Cleland, former member of NASA Institute for Astrobiology in the quest for finding extraterrestrial life! Once a member of NASA Institute for Astrobiology, now Professor of Philosophy at the University of Colorado. Her research areas include microbiology, origins of life and the theory of computation. She is the inventor of the term ‘shadow biosphere’, and currently finishing a book titled "The Quest for a Universal Theory of Life: Searching for life as we don’t know it".