Current Issue Article I found this fragment to be very interesting it ties very well into what we withdraw been learning intimately with the universe. The article talks about how astronomers wet-nurse up used old stars to determine the long sentence of the universe. The article tells how herds grass Beers and his associates have discovered a radioactive isotope, uranium-238, in a metal-poor star located on the outskirts of the milkyway. I suppose I should give a little fundament that the article talked about first. Astronomers have found the age of galore(postnominal) stars by development radioactive dating. See astronomers are open to calculate the age of a star by victimization this radioactive dating.
This regularity does work for older stars that were formed from fair hydrogen, helium and atomic number 3 these are nonradioactive elements that are called metal poor-stars. Well it is desire that some of these stars were monumental and exploded and set off thermonuclear reactions that made a second generation of metal-poor stars and some of these stars cont...If you lack to get a full essay, order it on our website:
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