? The individual resting photon mass = 6.4555e-83 gram Photons/m3 and of photons at rest: http://guthvenus.tripod.com/gv-photons-m3.htm QUESTIONS; how many photons/m3 are there ? How weak, in terms of mass, are regular photons ? How about the mass of a given resting photon ? How many such photons (resting or otherwise) may exist or coexist/m3 ? Could a blackhole worth of resting photons surround a seed of anti-matter ? Are photons individual travelers, or are they being superconducted along by way of FIFO nodes of atomic Oort zones ?