Authors: George Rajna
The precise determination of the neutron skin of lead (or how far the neutrons stick out from the protons in the nucleus) tells us about the equation of state (EOS) of neutron matter.  Matter is composed of chemical elements mainly created in stars via nuclear reactions and complex nuclear reaction networks.  These particles are produced by stellar flares or by shock waves driven by magnetic events in the stellar corona.  Researchers have investigated wave-particle interactions between energetic electrons and chorus waves evolving in the space surrounding the Earth using the scientific satellite Arase and, simultaneously, transient auroral flashes by the ground-based global observation network.  The universe consists of a massive imbalance between matter and antimatter.  Our universe could be the mirror image of an antimatter universe extending backwards in time before the Big Bang.  "As you celebrate New Year's Day, cast an eye upward and think for a moment about the amazing things our country and our species can do when we set our minds to it," Stern wrote in the New York Times on Monday.  Our senses are stuck in the past. There's a flash of lightning, and then seconds pass until we hear the rumble of distant thunder. We hear the past.  ESA's technical centre in the Netherlands has begun running a pulsar-based clock. The "PulChron' system measures the passing of time using millisecond-frequency radio pulses from multiple fast-spinning neutron stars.  VR is an almost perfect avenue for this approach, since it has been surging in popularity as both entertainment and an educational tool.  Using MAGIC telescopes and NASA's Fermi spacecraft, an international team of astronomers has discovered a new source of very high energy gamma-ray emission around the supernova remnant (SNR) G24.7+0.6. 
Comments: 66 Pages.
[v1] 2019-07-17 10:51:30
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