A round object the shape of a bubble hovered by a window of a four or five story building. The object was silent. Some 20 feet os so over was a second identical object hovering in mid air. A third identical object was further out in the sky. There was a fourth identical object going out even further. There may have been 5 or 6 of these bubble shaped objects. Each one going further and further out into the sky. The closest one which was hovering by the window may have been around 9 feet in diameter. I was 6 years old and with my mother one afternoon after kindergarten going to meet my father. My mother and I were walking down this street when we noticed many people starring up at the sky. Of course we had to look up to see what everyone was looking at. I remember looking at these objects and wondering what they were.