BBC地平线：陨石真相大揭密剧情简介
Onabright,coldmorningon15thFebruary2013,ameteoriterippedacrosstheskiesabovetheUralmountainsinRussia,distintegratingintothreepiecesandexplodingwiththeforceof20Hiroshimas.ItwasastarkreminderthattheEarth'
sjourneythroughspaceisfraughtwithdanger.Adaylateranothermuchlarger14,3000tonneasteroid,passedwithinjust17,000milesof...
