We hear from an astrobiologist at the Jet Propulsion Laboratory in Pasadena about the possibilities for life elsewhere in the solar system (and the universe); from the director of Yale's Comparative Cognition Laboratory about why we keep making the same mistakes; from a Cambridge lab about DNA synthesis; from the Tanzanian savannah about what lies behind attractiveness; we hear about how to breed plants to withstand disease, about ways to extract significance from the Interne's enormous datasets, about oceanography, neuroscience, microbiology, and evolutionary psychology.