It looked like a backwards firework fountain that split into sparkles. First one and then a second above it. I was on a sidewalk just under trees and my neighbor ahead of me. She saw it better than I did. If it got closer to the ground we wouldn't know because there was a building in the way. It was bright but no boom like the Sheboygan fireball I sort of saw. That was a really bright few flashes of greenish blue at around 1:25 am and my teen saw the light too, then we heard the boom and shake of the house. We thought a nuclear mistle hit. So maybe this was space junk.