ምርምር በ ISS ና የጀርመን ተሳትፎTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoTekle Yewhala3 ኅዳር 2007ረቡዕ፣ ኅዳር 3 2007https://p.dw.com/p/1Dlu3ማስታወቂያ