ሳይንስውቅያኖስ በድንኳ ፕላኔት፥ፕሉቶTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoሳይንስMantegaftot Sileshi Siyoum14 ኅዳር 2009ረቡዕ፣ ኅዳር 14 2009https://p.dw.com/p/2T8OOማስታወቂያ