Nucleosynthesis: Elements from Stars

        I went on my evening walk listening to a new astronomy lecture called “Nucleosynthesis: Elements from Stars”. Nucleosynthesis is the formation of elements from either the Big Bang (light elements no greater than Lithium); Stellar Nucleosynthesis (heavier elements from Carbon to Calcium); Explosive Nucleosynthesis (elements heavier than Iron) created by Supernova; and Cosmic Ray Spallation that creates lighter elements by bombardment of gas and dust in the interstellar medium. Some of this I already knew but the term for it “Nucleosynthesis” is new to me. There was so much discussed in the lecture, and for me to understand fully the process, I’ll have to listen to it again and add to this post later. I did catch one error though; they said that light takes over a hundred thousand years to reach the surface from the Sun’s core, when in fact it takes around thirty-three thousand years. I think they had gotten their data from an old NASA site that hasn’t corrected it to the new theory yet.