Learn about the origin and evolution of life and the search for life beyond the Earth. Over two thousand years ago, the ancient Greeks wondered if there were other worlds in the cosmos. This question is now being experimentally tested. This course, offered by the UK Centre for Astrobiology at the University of Edinburgh, is an introduction to astrobiology. It explores the origin and evolution of life on the Earth and its potential to exist elsewhere. Astrobiology addresses compelling questions of wide interest such as: How did life originate on the Earth? Is this an inevitable process and is life common across the Universe? Astrobiology is an interdisciplinary science that bridges fields as diverse as astrophysics, biology, geosciences and chemistry.