10 orbs seen over Phoenix January 9, 2013

MUFON testimony describes the sighting of 10 orbs over Phoenix, heading east to west:

When I glanced up and saw the front three passing overhead, with a very deliberate trajectory lacking any pretense of balloons being carried along by the wind, I was immediately awestruck by what I was seeing. As the front three became obscured by the wispy cloud cover overhead, and I was able to see others following along in the open blue behind them, I became intensely focused and dumbfounded by what I was witnessing.