Are they out there Intelligent beings from another world. Will we ever make contact with them Is it even sensible to make guesses about whether life exists in other galaxies billions of light years from our own How much do we know about outer space What are black holes, dark matter and strange attractors Is our universe just one amongst an infinity of multiverses Can we dispense with the idea of a creator GodOn 16th March 2011 some of the greatest names in space exploration and the mysteries of the cosmos guided us to outer realms and argued about some of the most fascinating questions we’ve ever asked ourselves.