Metallicity Troubles Secular Cosmologists
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People who have been reading this weblog for a spell know that I emphasize definitions, as people can argue with each other about different subjects with the same name. Something that is strange to me is that metals mean something different to astronomers than to the rest of us: Anything heavier than an the atomic weight of helium is a metal. Now that we know, we can see something amazing. Most stars are overwhelmingly composed of hydrogen and helium. Secular cosmology has a story about the origins of metals that does not work. Nebula W51, NASA / JPL-Caltech (usage does not imply endorsement of site contents) One of the latest threats to the Big Bang story is distant galaxies , and metals are also problematic. Metals are found in stars by using spectroscopes. Different elements have different signatures in the light. Our sun is like the other stars in the universe, and also nebulae, by having only trace amounts of those other elements. Earth, however, has numerous elements a...