Solar storms! Full moon! Must be Friday the 13th – CNN.com June 13, 2014 by Jerri.Stracener Leave a Comment Common Western superstition says Friday the 13th is unlucky. But what does it say about a Friday the 13th with a full moon and solar flares that could create geomagnetic storms large enough to disrupt Earth’s atmosphere? via Solar storms! Full moon! Must be Friday the 13th – CNN.com.