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مشاهدة النسخة كاملة : How the Earth lost its crust: incredible animations reveals our planet was pounded by

ahlam1399
07-31-2014, 03:12 AM
Asteroids and comets repeatedly smashed into the early Earth, Colorado researchers have revealed.

أكثر... ( http://www.dailymail.co.uk/sciencetech/article-2711350/How-Earth-lost-crust-incredible-animations-reveals-planet-pounded-asteroids-comets-young.html?ITO=1490&ns_mchannel=rss&ns_campaign=1490 )