"Originally posted by American Where did the dirt come from ?"
"Well , the short version is that shortly after the big bang , the universe was filled by a hot quark plasma . As it expanded and cooled , the process of nucleosynthesis produced the primordial elemental abundance , primarily hydrogen , with some deutirium , helium , and lithium . The physics is well understood , and verified by observation . Quantifying uncertainties in primordial nucleosynthesis without Monte Carlo simulations At roughly a billion years of age , stars and galaxies formed , some fraction of the stars that formed were massive supergiants , that burned up their hydrogen into other elements , up to the atomic number of iron . This occurred at a tremendous rate and in a few more billion years , these stars went supernova and exploded . Prior to going supernova , these stars go through a phase where the outer layers of the star are shed , providing ways to transport the lighter elements away from the star . You can see this in the following link : Hubble Chemically Analyzes the Ring around Supernova 1987A The trememdous radiation of the supernova permits the formation of elements with atomic numbers higher than iron . The force of these explosions scattered the newly created elements , creating vast gas and dust clouds . Eventually , the shockwave of another explosion initiated the collapse of one of these clouds , and the spinning hydrogen cloud begins to heat , eventually initiating nuclear fusion , and becoming our sun . As the sun began to increase it 's heat output , the volatile remains of the accretion disk are driven away from the inner portion of the solar system , leaving mostly heavy elments . Comets bombarded the inner solar system , transporting water , carbon , and amino acids to the newly forming earth , making dirt . In short , a truely wonderful creation ."
"Where did the dirt come from"
"Well , the short version is that shortly after the big bang , Quantifying uncertainties force of explosions In short , a truely wonderful creation"