An incredible travel through space and time between the walls of the Paris Observatory, which is celebrating its 350th birthday. Place of discoveries such as speed of light or Neptune’s existence, it is still today one of the oldest operating observatories and the greatest hub in the world for astronomy and astrophysics researches, second only to Harvard.

Jérémie Vaubaillon
as Self

Pierre Drossart
as Self

Étienne Pariat
as Self

Isabelle Bualé
as Self

Claude Catala
as Self

Arnaud Landragin
as Self

Pascal Descamps
as Self

Vincent Coudé du Foresto
as Self

Theo ten Brummelaar
as Self

Stephen T. Ridgway
as Self