From myth to science though timekeeping and navigation, the night sky is central to the human story. Cosmologist Roberto Trotta considers the many ways in which our lives are intertwined with the stars.

Trotta examines the contribution of clockmakers to astrological exploration, and explores what happens when two different navigation traditions collide.

Read by Khalid Abdalla
Abridged by Anna Magnusson
Producer: Eilidh McCreadie Show less