Authors: George Rajna
Active galactic nuclei (AGN) are among the most dramatic and interesting phenomena in extragalactic astronomy.  A new study conducted by a team of astronomers from Poland and South Africa provides more insights into the nature of Hen 3-160, a symbiotic binary system in the southern Milky Way.  There are more than 3,900 confirmed planets beyond our solar system. Most of them have been detected because of their "transits"—instances when a planet crosses its star, momentarily blocking its light.  Rice University physicists have created the world's first laser-cooled neutral plasma, completing a 20-year quest that sets the stage for simulators that re-create exotic states of matter found inside Jupiter and white dwarf stars.  An international group of astronomers has detected an intense and extremely luminous gamma-ray flare from one of high-redshift blazars known as DA 193.  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. 
Comments: 68 Pages.
[v1] 2019-01-07 07:46:16
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