Two fast UFO caught over Dayton, Wyoming

On July 28, 2017, two people were outside, drinking a coffee. Suddenly, they seen two UFOs faster than an aiplane over Dayton, Wyoming. What the hell is it?

Witness report:

My husband & I we're outside drinking coffee when I saw something white on the horizon. There were 2 of them & I just stood there trying to figure out what they were. They had movement that reminded me of a blimp but faster. The 2nd object was quite a ways behind but caught up quick. I had my camera in my hand & so decided to take a picture. I almost didn't get the chance before they were gone.We felt that it was definitely something not explainable!!