Sigmund Jähn with Valery Bykovsky before the launch in 1978

Sigmund Jähn und Waleri Fjodorowitsch Bykowski vor dem Start 1978
Sigmund Jähn with Valery Bykovsky before the launch in 1978
Sigmund Jähn (front) and the Soviet cosmonaut Valery Bykovsky before their journey into space in 1978. Bykovsky died in March 2019.
Credit:

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