We saw something like 25 years ago. It was a hot summer day the sky was clear blue with no wind at all. Then something in the sky like a transparent balloon was flying straight, very straight, too straight for a balloon me thinks, and very slowly. We were all intrigued, and realize it was not a simple balloon. The thing was all transparent and inside, in the center of that 'balloon' was another balloon also kinda transparent but seems way brighter. no sound, no wind, nothing beneath it or above. Since that day i tried to search for infos about weather balloons and all kind of balloons we can see in the sky but none of what i can find looks like what we saw that day.
Years later i saw what appears to be like debris from a satellite falling in the atmosphere, well thats what i think it was and that was amazing to see. It was like a wall of fire live painted far away in the sky, just amazing.