ሳይንስፕሮፌሰር የዓለምጸሐይ መኮንን የሁምቦልት ሽልማት ተበርክቶላቸዋልTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoሳይንስTesfalem Waldyes Erago20 ሰኔ 2010ረቡዕ፣ ሰኔ 20 2010https://p.dw.com/p/30Q1xማስታወቂያ