When Debbie Lomanto sent this to me, I was skeptical by the sounds of it, until I watched it. What in the world could this of been? Thousands witnessed it, so a CG Hoax is out. It could just be the way the sun is hitting the clouds, but in such a perfect circular formation? I am really stumped on this and a news station is reporting it. This happened in Moscow of all places. Interesting! VIEW, VOTE and DISCUSS!!!