Authors: George Rajna
Physicists theorize that this time-reversal violation is the key ingredient needed to unravel the cosmic mystery of the missing antimatter.  The arrow of time and the accelerated expansion are two fundamental empirical facts of the universe.  The intensive, worldwide search for dark matter, the missing mass in the universe, has so far failed to find an abundance of dark, massive stars or scads of strange new weakly interacting particles, but a new candidate is slowly gaining followers and observational support.  "We invoke a different theory, the self-interacting dark matter model or SIDM, to show that dark matter self-interactions thermalize the inner halo, which ties ordinary dark matter and dark matter distributions together so that they behave like a collective unit."  Technology proposed 30 years ago to search for dark matter is finally seeing the light.  They're looking for dark matter-the stuff that theoretically makes up a quarter of our universe.  Results from its first run indicate that XENON1T is the most sensitive dark matter detector on Earth.  Scientists at Johannes Gutenberg University Mainz (JGU) in Germany have now come up with a new theory on how dark matter may have been formed shortly after the origin of the universe.  Map of dark matter made from gravitational lensing measurements of 26 million galaxies in the Dark Energy Survey.  CfA astronomers Annalisa Pillepich and Lars Hernquist and their colleagues compared gravitationally distorted Hubble images of the galaxy cluster Abell 2744 and two other clusters with the results of computer simulations of dark matter haloes. 
Comments: 41 Pages.
[v1] 2019-04-08 09:07:35
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