Hellow guys, Welcome to my website, and you are watching 지구 재료 '우주 먼지'…초신성 폭발에서 기원 / YTN 사이언스. and this vIdeo is uploaded by YTN 사이언스 at 2015-03-25T23:08:06-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.
