During this process quasars populate with additional matter their galaxies. There is no time and energy constraint for such and effect, so it can happen already 1 billion year after Big Bang and can be extremely energetic, also it can carry definit momentum. Such an object we can identify as Quasar. In Schwarzschild coordinates, the Schwarzschild metric has the form: Via these channels large intensity matter can come through as white source and form jet emission of matter into the Visible Universe. The Bridge can be opened by the effect that in Dark Matter there are developed Aggregations of matter which opens bridges (Schwarzhild Wormholes). The Extended Einstein Rosen Bridges are realised by Schwarzhild Wormholes. On the base of this we predict that Extended Einstein Rosen Bridges can develop between the Dark Matter Universum and the visible Universe. We suppose that Dark Matter is an other Universe, so we identify Dark Matter as the other Universe. Poster: Extended Einstein Rosen Bridge Quasars are Predicted However, the sub-halo central density problem remains a persistent problem for pure cold dark matter galaxy formation. Searches for sterile neutrino warm dark matter effects on cosmological small-scale structure have led to no signals in the linear regime, nor any signals in the X-ray through their decay. For certain parameter regimes, sterile neutrinos can also exhibit the properties of cold dark matter. Galaxy formation and cosmological small-scale structure has hinted at a potential cutoff in primordial perturbations at sub-dwarf galaxy scales, a possible indication for ''warm'' dark matter, for which sterile neutrinos are an ideal candidate. I review the status of astrophysical and cosmological probes of sterile neutrino dark matter. Plenary Talk: Status of sterile neutrino dark matterĬo-authors: Massimo Ricotti, Emil Polisensky, George M. Abazajian, University of California, Irvine