All I knew from Guzmán was The Battle of Chile, which is newsreel documentary with explanatory postscript. I heard this was another doc about Pinochet horrors made forty years later and thought ah, more of the same. But this is something very different: a poetic, visual doc encompassing early man, human history and the cosmos, past and present colliding in beauty and horror.

One of the movie’s subjects, Lautaro Núñez, explains:

The astronomers created an enormous telescope … They are in the present recording a past which they have to reconstruct. They have only minute clues. They are archaeologists like us. … Why are there archaeologists and astronomers in the same place? The answer is simple. Here, the past is more accessible than elsewhere. The translucency of the sky is, for the archaeologists of space, what the dry climate is for us. It facilitates our access to evidence from the past.

Guzmán: “And yet, this country has not yet considered its past. It is held in the grasp of the coup d’etat which seems to immobilise it.”

Guzmán slowly brings the focus from ancient archaeology to more recent, focusing on a group of women who have combed the desert for decades looking for the graves of their relatives who were murdered and disappeared by Pinochet’s men. Then he connects even this to the cosmic, all with beautiful photography.

Astronomer Valentina Rodríguez’s parents are among the dead. “Astronomy has somehow helped me to give another dimension to the pain, to the absence, to the loss. I tell myself it’s all part of a cycle… we are all part of a current… like the stars which must die so that other stars can be born… nothing really comes to an end.”