Tormod Posted June 24, 2003 Report Share Posted June 24, 2003 this is interesting stuff:96 percent of cosmos puzzles astronomers From CNN: "The Earth, moon, sun and all visible stars in the sky make up less than one percent of the universe. Almost all the rest is dark matter and dark energy, unknown forces that puzzle astronomers." I wrote a hypography on missing matter a while back, it may be a bit outdated now:Missing Matter hypography Tormod Link to comment Share on other sites More sharing options...
dgeake Posted June 26, 2003 Report Share Posted June 26, 2003 The article states: "Dark energy will cause the universe to expanded faster and faster and eventually, over time, we will see less and less of it," Kirshner said. Over millions of years, familiar stars and nearby galaxies will disappear from view and the sky, now choked with stars, will slowly darken. "The piece of the universe that we can see will get lonelier and lonelier," he said. This may not be the final outcome of the universe. A long time ago a "steady state" theory of cosmology thought that the average density of the university is constant. The measurement of the microwave background radiation and support of the "big bang" theory left this theory in the dust. New theorys now declare that it is possible that this may still be somewhat true, if protons and electrons are spontaneously appearing in interstellar space. There is currently not much evidence for this, however, and the theory is not widely accepted. It is good to know that there are other opinion. Quasi steady state theory:http://www.iisc.ernet.in/pramana/dec1999/c3.pdfhttp://casswww.ucsd.edu/personal/gburbidge.html The original steady state theory:http://cosmology.berkeley.edu/Education/cosprinc.html#steadystate Awesome site with questions and answers on cosmology:http://www.astro.ucla.edu/~wright/cosmology_faq.html Link to comment Share on other sites More sharing options...
Tormod Posted June 26, 2003 Author Report Share Posted June 26, 2003 Hi dgeake, don't remember ever welcoming you to our forums, so here goes: Welcome! Thanks for the links. For the cosmology-inclined among us, I can recommend one book which tries to speculate about the future of the Universe - read my review of The Five Ages of the Universe. Tormod Link to comment Share on other sites More sharing options...
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