Milcząca Gwiazda, literal English translation The Silent Star, is a 1960 East German/Polish color science fiction film based on the 1951 science fiction novel The Astronauts by Polish science fiction writer Stanisław Lem. It was directed by Kurt Maetzig, and stars Günther Simon, Julius Ongewe and Yoko Tani. The film was first released by Progress Film in East Germany, running 93 min. Variously dubbed and cut versions were also released in English under other titles: First Spaceship on Venus, Planet of the Dead, and Spaceship Venus Does Not Reply.

The Astronauts is the first science fiction novel by Polish writer Stanisław Lem published as a book, in 1951.