In 1999 Scientists wrote that they believed the speed of light was not constant. http://www.sciencedaily.com/releases/1999/10/991005114024.htm Where they got it wrong was that they thought there was some “strange, unknown and as-yet-undiscovered forms of matter”. The fact that the explosion forced matter out from the center at high rates of speed the light emanating from that matter would have been moving faster due to the time deferential of the moving matter in relationship to our current frame of reference. Just more observations to show that the speed of light is a frame of reference constant not a universal one.
