Authors: George Rajna
The symmetries that govern the world of elementary particles at the most elementary level could be radically different from what has so far been thought.  A fraction of a second after the Big Bang, a single unified force may have shattered. Scientists from the CDF and DZero Collaborations used data from the Fermilab Tevatron Collider to recreate the early universe conditions.  Now researchers at the Paul Scherrer Institute PSI have helped to better understand the first minutes of the universe: They collected artificially produced beryllium-7 and made it into a sample that could be investigated.  Researchers have developed a new way to improve our knowledge of the Big Bang by measuring radiation from its afterglow, called the cosmic microwave background radiation.  The group's results reinforce a disagreement over the value of the Hubble constant as measured directly and as calculated via observations of primordial radiation – a disparity, say the researchers, which likely points to new physics.  Neutron stars consist of the densest form of matter known: a neutron star the size of Los Angeles can weigh twice as much as our sun.  Supermassive black holes, which lurk at the heart of most galaxies, are often described as "beasts" or "monsters".  The nuclei of most galaxies host supermassive black holes containing millions to billions of solar-masses of material.  New research shows the first evidence of strong winds around black holes throughout bright outburst events when a black hole rapidly consumes mass.  Chris Packham, associate professor of physics and astronomy at The University of Texas at San Antonio (UTSA), has collaborated on a new study that expands the scientific community's understanding of black holes in our galaxy and the magnetic fields that surround them.  In a paper published today in the journal Science, University of Florida scientists have discovered these tears in the fabric of the universe have significantly weaker magnetic fields than previously thought. 
Comments: 30 Pages.
[v1] 2018-11-16 09:36:12
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