What is the central story of Harry Martinson's verse epic Aniara?

In the context of Swedish literature, Aniara (1956) is a significant verse epic by Harry Martinson. The work serves as a profound meditation on humanity's place in the universe, framed through the narrative of a space voyage.

The central story follows a massive spacecraft, the Aniara, which is transporting colonists away from a devastated Earth. During its journey, the ship is knocked off course and drifts helplessly into the vast, empty reaches of space. As the passengers realize they are trapped in an eternal voyage toward oblivion, the poem explores themes of existential despair, the fragility of human civilization, and the consequences of environmental destruction. The epic is widely regarded as a powerful critique of technological hubris and a somber reflection on the human condition in time and space.1