What does science tell us about our origins? How scientists can now answer these ancestral questions: who are we, and where do we come from?

Through astronomy, this documentary takes us to the discovery of our most distant roots, and reminds us of the link that exists between the past of the universe and our own existence.

With the participation of six researchers: Sylvie Vauclair, Yaël Nazé, Christophe Galfard, Aurélien Barrau, Jean-Pierre Luminet and Etienne