• Karl-Birger Blomdahl. Revue about man in time and space. 1958.
• Libretto by Erik Lindegren, after a poem by Harry Martinson.
• First performance at the Royal Opera, Stockholm, on 31st May 1959.

Controlled by the computer Mima, the space-ship Aniara leaves the poisoned Earth, heading for Mars. The vessel is thrown off course, forcing a journey to Lyra which will last for the rest of the lives of crew and passengers. Mima destroys the Earth and cannot continue, while the commander deals as he can with the increased despair of those aboard and their moral deterioration. The 20th anniversary of the voyage is celebrated and death is near, as the journey comes to its end.

A score of much variety makes full use of a range of musical idioms, including jazz, serial writing and an electronic tape. The narrative is entrusted principally to Mimaroben, a bass-baritone, who operates the electronic tape Mima, and to the chorus. This very successful work treats, according to Blomdahl, the relationship between the individual and the group in regard to time.