A friend who believes in chemtrails sent me this photo for an explanation. I would guess that it is either crepuscular rays, http://en.wikipedia.org/wiki/Crepuscular_rays ,or an artifact of imperfections in the camera. http://physics.stackexchange.com/questions/35935/what-are-these-rays-that-appear-in-photograph-of-sun . Does anyone want to add anything or correct this? This picture was taken facing south, probably around 11 am, in northeastern Colorado. There are also some normal contrails, a low cloud (altostratus?) and a short length of what could be a spread out contrail.