Strange light ball appeared in Russian Sky after Putin tested Satan 2.

http://siberiantimes.com/other/others/news/reports-of-spectacular-ufo-signaled-by-a-giant-glowing-ball-lighting-the-sky-in-northern-siberia/

The Russian government tried to brush it off as the trail of the Satan 2 launch but missiles experts claimed that they had not seen such missile trail before.  Therefore, this is definitely an abnormal light ball which cannot be explained.