At 8:45 am heading south bound on nh rt 16 approaching tolls in dover. heavy traffic south bound caused by rubber necking to see north bound crash. i was taking a video of the traffic/crash when i noticed something in the sky. it looked like a telephone pole and was black. i was probably moving at 10mph and when it went past me it was moving right along, maybe 30mph? i lost sight of it in the bright sun.