Onabright,coldmorningon15thFebruary2013,ameteoriterippedacrosstheskiesabovetheUralmountainsinRussia,distintegratingintothreepiecesandexplodingwiththeforceof20Hiroshimas.ItwasastarkreminderthattheEarthsjourneythroughspaceisfraughtwithdanger.Adaylateranothermuchlarger14,3000tonneasteroid,passedwithinjust17,000milesof...如果您喜欢上尚影院(www.hzxbl999.com)分享的《BBC地平线陨石真相大揭密》,别忘了推荐给你的好友!
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