Current Issue Article I found this segment to be very interesting it ties very well into what we guard been learning intimately with the universe. The article talks about how astronomers withdraw up used old stars to determine the long time of the universe. The article tells how herds grass Beers and his associates have discovered a hot isotope, uranium-238, in a metal-poor star located on the outskirts of the milkyway. I suppose I should give a little backward that the article talked about first. Astronomers have found the age of umteen stars by development radioactive dating. See astronomers are equal to(p) to calculate the age of a star by use this radioactive dating.
This regularity does work for older stars that were formed from retributory 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 vast 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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