Astrophysical effects of space-time foam

During the quantum stage, the space-time had a foamlike structure. As the Universe cools down, the foam structure tempers and does not disappear, therefore the Friedmann model represents only an idealization. We show that local inhomogeneity of the foamy structure should be observed as a Dark Matter (DM) halo around point sources. Such a halo extends up to the scales where the foamy structure averages to homogeneity. We also show that scattering of photons from a point source on the foamlike structure gives rise to the origin of a diffuse component of radiation whose distribution traces that of DM.