Summary: Will the Nasa Kepler mission become one of the Space Agency's most famous and significant achievements? Quentin Cooper speaks to William Borucki, Principal Scientist on Kepler, who believes it will be. Also Dr. Stephen Lowry from the University of Kent describes how data collected from the fly by of the asteroid Apophis will help scientists track its course - and determine if it will hit the Earth. Dr. David MacInroy from the British Geological survey talks about the difficulties of Arctic drilling and Dr. Tim Behrens from University College London on why some areas of the brain are proving very popular with neuroscientists.
