I never saw anything like it in my life. It was no shooting star.As I was walking the dog I saw a large object in the northern sky moving from west to east. I was just above the tree line. It was very large. As big as a bus. It was bright white. The shape was round in front and round in back. The front was larger than the back. I saw it for a second and it was gone. The height of the object was 1/4 the size of it's length. It had no tail. There was no noise. It was not burning red. It was bright solid white. It was a clear night with stars out. My first reaction was, what was that. Maybe it was comet, or space junk. But it only appeared as a quick flash. I called the police department to see if anyone else might have reported it. Can someone tell me what I saw?