In this physics and astronomy episode we chat to Dr Tara Shears just before the LHC was switched on in September 2008; catch up with two space scientists to find out about their heroes of science; and eavesdrop on a fascinating conversation between Dr Dave Rothery and Dr Mahesh Anand about the moon. The interviews are recorded by OU staff and the programme is hosted by Dr Mike Bullivant from the OU/BBC television series Rough Science.