One of the most potent questions we ask about the cosmos is: are we alone? From astrobiology to exoplanets in the 'Goldilocks Zone', Jaime Green traces our understanding of what and where life in the universe could be, drawing on the long tradition of scientists, writers and artists who have stimulated research by extrapolating worlds. Bringing together expert interviews, cutting-edge astronomy, philosophical inquiry and pop culture touchstones ranging from A Wrinkle in Time to Star Trek, The Possibility of Life delves into our evolving conception of the cosmos to wonder what we might find... out there.