The trail of a falling object is seen above a residential apartment block in Chelyabinsk, Russia, on February 15, 2013. Morning traffic ground to a sudden halt in the city as a falling meteor ... more 

The trail of a falling object is seen above a residential apartment block in Chelyabinsk, Russia, on February 15, 2013. Morning traffic ground to a sudden halt in the city as a falling meteor partially burned up in the lower atmosphere above the city and lit up the morning sky less