The history of humanity is intimately entwined with the cosmos. The stars have influenced religion, art, mathematics and science – we appear naturally drawn to look up in wonder. Now, with modern technology, our view of the cosmos is changing. It is in reachable distance of our spacecrafts and satellites, and yet because of light pollution we see less and less of it here on Earth. Joined by the author of The Human Cosmos, Jo Marchant, and the astronomer royal, Martin Rees, Linda Geddes explores our relationship with the night sky.