در این روز در فضا! 26 اوت 1978: زیگموند یان اولین آلمانی در فضا شد

On this day in space! Aug. 26, 1978: Sigmund Jähn becomes 1st German in space

On Aug. 26, 1978, cosmonaut and pilot Sigmund Jähn became the first German to fly in space. Here's why it mattered.