16:30 Sunday 4 Nov 2012 Northern Rock Foundation Hall
Presented by Matthew Sweet
Scientists have now detected distant planets that may contain life. If we are not alone in the Universe, will this fundamentally affect how humanity understands itself, and should we be prepared for the consequences?
Join best-selling science fiction writer Stephen Baxter, whose books include the latest Doctor Who novel, the science broadcaster and journalist Sue Nelson, and one of our leading experts on extraterrestrials, Professor of Space Science at Open University John Zarnecki.