[Machine Translation] The planet Solaris - this serene planet was covered on its surface by a sea of will. Sent to the station to unravel the mysteries of the planet, psychologist Kelvin sees a group of researchers who have changed. What is happening to them? Kelvin, too, is caught up in the phenomena brought about by the sea of Solaris.... Is it possible to make contact with non-human reason? A masterpiece that will remain in the history of science fiction, in which a giant of knowledge asks the world the question: "Is it possible to contact non-human reason? Completely translated from the Polish original by a leading REM researcher.