In this podcast extra episode Jeni discusses the recent detection of two colliding neutron stars and their observation in both gravitational waves and all areas of the electromagnetic spectrum. Jeni chats with Dr Edward Gomez, Education Director at the Las Cumbres Observatory and Cardiff University’s Gravitational Physics Research Group Leader, Professor Patrick Sutton about the historic observations, what we can learn from these events, the future of gravitational wave astronomy and how this new window into the universe can help us improve some of the fundamentals of our knowledge of space and time. We also put listeners’ questions on these subjects from Raoul Van Eindhoven, @FuzzySemi and @calcomega to Patrick.