I witnessed a large saucer shaped disk outside Las Vegas, NV.
We were driving from Las Vegas to Salt Lake City.
At 2:00 a.m. I was a passenger in the car, and overhead in front of the car I spotted a silver colored disk, which was immediately witnessed by the other 3 in the car.
It hovered in the same place for approximately 5 minutes and then left the area at an extreme rate of speed.