On Fri, Feb 2, 2018 at 6:21 PM, <mix...@bigpond.com> wrote: So now, you have either proven that photons do contribute to gravitational > mass, > or that particles never enter a black hole. :) >
Suppose for the sake of argument that photons carry mass in a very delocalized way. Would there be enough of this mass to account for the experimental observations that heave lead astrophysicists to search for dark matter? Eric
