NASA explains meteor explosions over Russia
After an asteroid exploded over Russia's Ural mountains, scientists are making progress understanding the origin and make-up of the unexpected space rock.
http://www.wtsp.com/video/2193385347001/1/NASA-explains-meteor-explosions-over-Russia
http://bc_gvpc.edgesuite.net/img/963482463001/201302/1541/963482463001_2193339987001_961896998-163-1361983089048.jpg?pubId=963482463001
NASA explains meteor explosions over Russia
After an asteroid exploded over Russia's Ural mountains, scientists are making progress understanding the origin and make-up of the unexpected space rock.
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