Darwinian evolutionary theory will help find alien life

In a talk marking the 150th anniversary of the publication of On the Origin of Species, a Nasa scientist said that Darwinian evolution will be the driving force of life anywhere in the universe, and we should use its predictions to decide where to look. Dr John Baross, a researcher at the Nasa Astrobiology Institute, said: "I really feel that Darwinian evolution is a defining