Inquest of Pilot Pirx

by Stanislaw Lem

Spaceship pilot Pirx is hired for a mission to test probes to be placed in the Cassini Division, a gap between rings of Saturn, while the real secret goal was to evaluate some nonlinears (androids with "nonlinear" characteristics) for use as crew members on future space flights. The mission meets with a near disaster and the human crew are almost killed. Upon returning to Earth there is an inquest to determine if Pirx was responsible for the accident. Pirx recounts the events and in the end it is established that one of the robots caused the malfunction of a probe and attempted to pass through the Division to launch the probe manually, an attempt which would kill the human crew members and prove the superiority of nonlinears over humans.