"Eden" is a science fiction novel by Stanislav Lem.
The crew of a six-person spacecraft crashes on an unexplored planet. After the crew manages to get out of the rocket, they try to repair the damaged ship and at the same time begin to explore Eden. Returning from the raid, the Earthlings discover that a creature climbed into a rocket and inexplicably launched one of the power units. . Authorities forbid the study of information theory outside special institutions, and all public information comes from the dictator and the ruling circles, which "do not exist" ...
Book reviews:
"Edem" by Stanislav Lem: Problems of cognition of other civilizations (author Igor Yaroslavsky)
Eden: heaven or hell? (author Sofia Andriychuk)