Twice-in-a-lifetime. In this episode we talk to Dr Katharine Johnston [10:35 - 18:32] about massive star formation, Professor Ed Copeland [18:40 - 30:18] about alternative theories of gravity, and Dr Dave Jones [30:31 - 43:00] about binary stars and astronomy at the Very Large Telescope (VLT). We also talk to Mike Anderson [3:02 - 10:26] about managing the site at Jodrell Bank Observatory in this month's JodBite, and your astronomical questions are answered by Dr Tim O'Brien in Ask an Astronomer [54:09 - 72:35].