In the harrowing Swedish science-fiction epic “Aniara,” a spacecraft designed to make the voyage from a ruined Earth to a colony on Mars hits both debris and disaster.

The turbulence from the impact soon passes, allowing the ship, the Aniara, to stabilize. The film’s plucky protagonist, MR (Emelie Jonsson), returns to her job with the crew — placating anxious passengers with images of Earth before fires turned the blue marble brown.

But once it becomes evident that the ship ejected its fuel when it hit the debris, it is impossible to dream away brutal reality: Without fuel, the Aniara and its passengers are doomed to drift in the infinite emptiness of space.