2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/86269In the context of a Planck scale underpinning for the universe, we argue that both gravitation and electromagnetism can be characterized in a unified way, in a Sakharov like description. We also consider the issue of observed gamma radiation, which recent observations seem to indicate are caused by the annihilation of exotic $Mev$ particles, as indeed was theoretically predicted earlier. Some other problems are also considered.IIAMIS July Report, 12 pages, texGeneral Physicstext