Bok
02-21-2013, 08:21 PM
Surprise: No one saw it coming
More... (http://www.sciencenews.org/view/generic/id/348512/title/FOR_KIDS_Meteor_explodes_over_Russia)
More... (http://www.sciencenews.org/view/generic/id/348512/title/FOR_KIDS_Meteor_explodes_over_Russia)