Moving flickering objects high in sky moving east to west

We were inside our house last night and all the sudden all the power went out. It was 11:00 pm, my son and I went outside as our dog was barking. We went outside and noticed there was no power or lights on our city as far as we could see. We were looking up at a totally clear sky and noticed lots and lots of clusters of white moving objects high in the sky that were flickering, they were all moving from east to west. As we were staring at these objects a gigantic white flash went across the sky to as far as the eye could see, we were a little scared. Then the sky became cloudy. Then clouds went away and more of the objects were continuing to move east to west. We didn’t get our power back til this morning around 6:00 am and DTE still has no explanation why power went out.