Ben Hammersley meets creators and fans to investigate how extended fictional universes, from Harry Potter to Game of Thrones, took over global culture.
See all episodes from Space
Dava Sobel explores our fascination with the cosmos, from Copernicus to recent innovation
Astronauts, moon walks and surviving in space
Innovation, the space race and the first heroes to boldly go
A collection of radio documentary programmes with one thing in common – space