第3話: ガリレオ建設中の緩んだ太陽光パネルの回収により、行方不明のコスモナウトが発見される。

3

During the construction of Galileo, a large solar panel comes loose and has to be retrieved, leading to the discovery of a lost cosmonaut who was going to land on the Moon in June 1969. (Source: Wikipedia)