Dr Becky and Izzie dust-down the Supermassive Tardis to explore the history of astronomy. From fossilised baboon bones and baby lamas to Einstein and black holes, the Supermassive team discovers how we came to understand the Universe the way we do today. Editor Richard talks to astronomer and science writer, Dr Stuart Clark, who reveals where the phrase ‘the dog days of summer’ comes from. And Izzie chats to President of the Royal Astronomical Society, Professor Mike Edmunds, about the amazing Antikythera astronomical calculator. As usual, Dr Robert Massey is on hand to take on your questions.  Stuart’s latest book is Beneath the Night: https://www.amazon.co.uk/Beneath-Night-Stuart-Clark/dp/1783351535 Send your questions or astrophotography to [email protected], tweet @RoyalAstroSoc, or find us on Instagram @SupermassivePod.  The Supermassive Podcast is a Boffin Media production for The Royal Astronomical Society. The producers are Izzie Clarke and Richard Hollingham.