Your True Tales for February 2011
Name of story:mystery moons.
I believe that they must be ball lightning. Ball lightning is an unexplained atmospheric electrical phenomenon. The term refers to reports of luminous, usually spherical objects which vary from pea-sized to several meters in diameter. It is usually associated with thunderstorms, but lasts considerably longer than the split-second flash of a lightning bolt.
you can read more about this from this link ( http://en.wikipedia.org/wiki/Ball_lightning )